21537360

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1$

素因数の和:107

約数の個数: 240

約数和(自身を含む): 81691200

約数和(自身を除く): 60153840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 59, 60, 65, 72, 78, 80, 90, 104, 108, 117, 118, 120, 130, 135, 144, 156, 169, 177, 180, 195, 208, 216, 234, 236, 240, 260, 270, 295, 312, 338, 351, 354, 360, 390, 432, 468, 472, 507, 520, 531, 540, 585, 590, 624, 676, 702, 708, 720, 767, 780, 845, 885, 936, 944, 1014, 1040, 1062, 1080, 1170, 1180, 1352, 1404, 1416, 1521, 1534, 1560, 1593, 1690, 1755, 1770, 1872, 2028, 2124, 2160, 2301, 2340, 2360, 2535, 2655, 2704, 2808, 2832, 3042, 3068, 3120, 3186, 3380, 3510, 3540, 3835, 4056, 4248, 4563, 4602, 4680, 4720, 5070, 5310, 5616, 6084, 6136, 6372, 6760, 6903, 7020, 7080, 7605, 7670, 7965, 8112, 8496, 9126, 9204, 9360, 9971, 10140, 10620, 11505, 12168, 12272, 12744, 13520, 13806, 14040, 14160, 15210, 15340, 15930, 18252, 18408, 19942, 20280, 20709, 21240, 22815, 23010, 24336, 25488, 27612, 28080, 29913, 30420, 30680, 31860, 34515, 36504, 36816, 39884, 40560, 41418, 42480, 45630, 46020, 49855, 55224, 59826, 60840, 61360, 63720, 69030, 73008, 79768, 82836, 89739, 91260, 92040, 99710, 103545, 110448, 119652, 121680, 127440, 138060, 149565, 159536, 165672, 179478, 182520, 184080, 199420, 207090, 239304, 269217, 276120, 299130, 331344, 358956, 365040, 398840, 414180, 448695, 478608, 538434, 552240, 598260, 717912, 797680, 828360, 897390, 1076868, 1196520, 1346085, 1435824, 1656720, 1794780, 2153736, 2393040, 2692170, 3589560, 4307472, 5384340, 7179120, 10768680, 21537360]

約数ペア:

[(1, 21537360), (2, 10768680), (3, 7179120), (4, 5384340), (5, 4307472), (6, 3589560), (8, 2692170), (9, 2393040), (10, 2153736), (12, 1794780), (13, 1656720), (15, 1435824), (16, 1346085), (18, 1196520), (20, 1076868), (24, 897390), (26, 828360), (27, 797680), (30, 717912), (36, 598260), (39, 552240), (40, 538434), (45, 478608), (48, 448695), (52, 414180), (54, 398840), (59, 365040), (60, 358956), (65, 331344), (72, 299130), (78, 276120), (80, 269217), (90, 239304), (104, 207090), (108, 199420), (117, 184080), (118, 182520), (120, 179478), (130, 165672), (135, 159536), (144, 149565), (156, 138060), (169, 127440), (177, 121680), (180, 119652), (195, 110448), (208, 103545), (216, 99710), (234, 92040), (236, 91260), (240, 89739), (260, 82836), (270, 79768), (295, 73008), (312, 69030), (338, 63720), (351, 61360), (354, 60840), (360, 59826), (390, 55224), (432, 49855), (468, 46020), (472, 45630), (507, 42480), (520, 41418), (531, 40560), (540, 39884), (585, 36816), (590, 36504), (624, 34515), (676, 31860), (702, 30680), (708, 30420), (720, 29913), (767, 28080), (780, 27612), (845, 25488), (885, 24336), (936, 23010), (944, 22815), (1014, 21240), (1040, 20709), (1062, 20280), (1080, 19942), (1170, 18408), (1180, 18252), (1352, 15930), (1404, 15340), (1416, 15210), (1521, 14160), (1534, 14040), (1560, 13806), (1593, 13520), (1690, 12744), (1755, 12272), (1770, 12168), (1872, 11505), (2028, 10620), (2124, 10140), (2160, 9971), (2301, 9360), (2340, 9204), (2360, 9126), (2535, 8496), (2655, 8112), (2704, 7965), (2808, 7670), (2832, 7605), (3042, 7080), (3068, 7020), (3120, 6903), (3186, 6760), (3380, 6372), (3510, 6136), (3540, 6084), (3835, 5616), (4056, 5310), (4248, 5070), (4563, 4720), (4602, 4680)]