21088890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2111}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 36695430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 2111, 3330, 4222, 4995, 6333, 9990, 10555, 12666, 18999, 21110, 31665, 37998, 56997, 63330, 78107, 94995, 113994, 156214, 189990, 234321, 284985, 390535, 468642, 569970, 702963, 781070, 1171605, 1405926, 2108889, 2343210, 3514815, 4217778, 7029630, 10544445, 21088890]

約数ペア:

[(1, 21088890), (2, 10544445), (3, 7029630), (5, 4217778), (6, 3514815), (9, 2343210), (10, 2108889), (15, 1405926), (18, 1171605), (27, 781070), (30, 702963), (37, 569970), (45, 468642), (54, 390535), (74, 284985), (90, 234321), (111, 189990), (135, 156214), (185, 113994), (222, 94995), (270, 78107), (333, 63330), (370, 56997), (555, 37998), (666, 31665), (999, 21110), (1110, 18999), (1665, 12666), (1998, 10555), (2111, 9990), (3330, 6333), (4222, 4995)]