21057060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11321}}^1$

素因数の和:11364

約数の個数: 48

約数和(自身を含む): 60867072

約数和(自身を除く): 39810012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11321, 22642, 33963, 45284, 56605, 67926, 113210, 135852, 169815, 226420, 339630, 350951, 679260, 701902, 1052853, 1403804, 1754755, 2105706, 3509510, 4211412, 5264265, 7019020, 10528530, 21057060]

約数ペア:

[(1, 21057060), (2, 10528530), (3, 7019020), (4, 5264265), (5, 4211412), (6, 3509510), (10, 2105706), (12, 1754755), (15, 1403804), (20, 1052853), (30, 701902), (31, 679260), (60, 350951), (62, 339630), (93, 226420), (124, 169815), (155, 135852), (186, 113210), (310, 67926), (372, 56605), (465, 45284), (620, 33963), (930, 22642), (1860, 11321)]