21550320

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:940

約数の個数: 160

約数和(自身を含む): 81066240

約数和(自身を除く): 59515920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 330, 360, 396, 432, 440, 495, 528, 540, 594, 660, 720, 792, 880, 907, 990, 1080, 1188, 1320, 1485, 1584, 1814, 1980, 2160, 2376, 2640, 2721, 2970, 3628, 3960, 4535, 4752, 5442, 5940, 7256, 7920, 8163, 9070, 9977, 10884, 11880, 13605, 14512, 16326, 18140, 19954, 21768, 23760, 24489, 27210, 29931, 32652, 36280, 39908, 40815, 43536, 48978, 49885, 54420, 59862, 65304, 72560, 79816, 81630, 89793, 97956, 99770, 108840, 119724, 122445, 130608, 149655, 159632, 163260, 179586, 195912, 199540, 217680, 239448, 244890, 269379, 299310, 326520, 359172, 391824, 399080, 448965, 478896, 489780, 538758, 598620, 653040, 718344, 798160, 897930, 979560, 1077516, 1197240, 1346895, 1436688, 1795860, 1959120, 2155032, 2394480, 2693790, 3591720, 4310064, 5387580, 7183440, 10775160, 21550320]

約数ペア:

[(1, 21550320), (2, 10775160), (3, 7183440), (4, 5387580), (5, 4310064), (6, 3591720), (8, 2693790), (9, 2394480), (10, 2155032), (11, 1959120), (12, 1795860), (15, 1436688), (16, 1346895), (18, 1197240), (20, 1077516), (22, 979560), (24, 897930), (27, 798160), (30, 718344), (33, 653040), (36, 598620), (40, 538758), (44, 489780), (45, 478896), (48, 448965), (54, 399080), (55, 391824), (60, 359172), (66, 326520), (72, 299310), (80, 269379), (88, 244890), (90, 239448), (99, 217680), (108, 199540), (110, 195912), (120, 179586), (132, 163260), (135, 159632), (144, 149655), (165, 130608), (176, 122445), (180, 119724), (198, 108840), (216, 99770), (220, 97956), (240, 89793), (264, 81630), (270, 79816), (297, 72560), (330, 65304), (360, 59862), (396, 54420), (432, 49885), (440, 48978), (495, 43536), (528, 40815), (540, 39908), (594, 36280), (660, 32652), (720, 29931), (792, 27210), (880, 24489), (907, 23760), (990, 21768), (1080, 19954), (1188, 18140), (1320, 16326), (1485, 14512), (1584, 13605), (1814, 11880), (1980, 10884), (2160, 9977), (2376, 9070), (2640, 8163), (2721, 7920), (2970, 7256), (3628, 5940), (3960, 5442), (4535, 4752)]