21977760

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 192

約数和(自身を含む): 82059264

約数和(自身を除く): 60081504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 96, 105, 112, 120, 124, 140, 155, 160, 168, 186, 210, 211, 217, 224, 240, 248, 280, 310, 336, 372, 420, 422, 434, 465, 480, 496, 560, 620, 633, 651, 672, 744, 840, 844, 868, 930, 992, 1055, 1085, 1120, 1240, 1266, 1302, 1477, 1488, 1680, 1688, 1736, 1860, 2110, 2170, 2480, 2532, 2604, 2954, 2976, 3165, 3255, 3360, 3376, 3472, 3720, 4220, 4340, 4431, 4960, 5064, 5208, 5908, 6330, 6510, 6541, 6752, 6944, 7385, 7440, 8440, 8680, 8862, 10128, 10416, 11816, 12660, 13020, 13082, 14770, 14880, 16880, 17360, 17724, 19623, 20256, 20832, 22155, 23632, 25320, 26040, 26164, 29540, 32705, 33760, 34720, 35448, 39246, 44310, 45787, 47264, 50640, 52080, 52328, 59080, 65410, 70896, 78492, 88620, 91574, 98115, 101280, 104160, 104656, 118160, 130820, 137361, 141792, 156984, 177240, 183148, 196230, 209312, 228935, 236320, 261640, 274722, 313968, 354480, 366296, 392460, 457870, 523280, 549444, 627936, 686805, 708960, 732592, 784920, 915740, 1046560, 1098888, 1373610, 1465184, 1569840, 1831480, 2197776, 2747220, 3139680, 3662960, 4395552, 5494440, 7325920, 10988880, 21977760]

約数ペア:

[(1, 21977760), (2, 10988880), (3, 7325920), (4, 5494440), (5, 4395552), (6, 3662960), (7, 3139680), (8, 2747220), (10, 2197776), (12, 1831480), (14, 1569840), (15, 1465184), (16, 1373610), (20, 1098888), (21, 1046560), (24, 915740), (28, 784920), (30, 732592), (31, 708960), (32, 686805), (35, 627936), (40, 549444), (42, 523280), (48, 457870), (56, 392460), (60, 366296), (62, 354480), (70, 313968), (80, 274722), (84, 261640), (93, 236320), (96, 228935), (105, 209312), (112, 196230), (120, 183148), (124, 177240), (140, 156984), (155, 141792), (160, 137361), (168, 130820), (186, 118160), (210, 104656), (211, 104160), (217, 101280), (224, 98115), (240, 91574), (248, 88620), (280, 78492), (310, 70896), (336, 65410), (372, 59080), (420, 52328), (422, 52080), (434, 50640), (465, 47264), (480, 45787), (496, 44310), (560, 39246), (620, 35448), (633, 34720), (651, 33760), (672, 32705), (744, 29540), (840, 26164), (844, 26040), (868, 25320), (930, 23632), (992, 22155), (1055, 20832), (1085, 20256), (1120, 19623), (1240, 17724), (1266, 17360), (1302, 16880), (1477, 14880), (1488, 14770), (1680, 13082), (1688, 13020), (1736, 12660), (1860, 11816), (2110, 10416), (2170, 10128), (2480, 8862), (2532, 8680), (2604, 8440), (2954, 7440), (2976, 7385), (3165, 6944), (3255, 6752), (3360, 6541), (3376, 6510), (3472, 6330), (3720, 5908), (4220, 5208), (4340, 5064), (4431, 4960)]