21072270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 53421120

約数和(自身を除く): 32348850

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 53, 58, 87, 106, 145, 159, 174, 265, 290, 318, 435, 457, 530, 795, 870, 914, 1371, 1537, 1590, 2285, 2742, 3074, 4570, 4611, 6855, 7685, 9222, 13253, 13710, 15370, 23055, 24221, 26506, 39759, 46110, 48442, 66265, 72663, 79518, 121105, 132530, 145326, 198795, 242210, 363315, 397590, 702409, 726630, 1404818, 2107227, 3512045, 4214454, 7024090, 10536135, 21072270]

約数ペア:

[(1, 21072270), (2, 10536135), (3, 7024090), (5, 4214454), (6, 3512045), (10, 2107227), (15, 1404818), (29, 726630), (30, 702409), (53, 397590), (58, 363315), (87, 242210), (106, 198795), (145, 145326), (159, 132530), (174, 121105), (265, 79518), (290, 72663), (318, 66265), (435, 48442), (457, 46110), (530, 39759), (795, 26506), (870, 24221), (914, 23055), (1371, 15370), (1537, 13710), (1590, 13253), (2285, 9222), (2742, 7685), (3074, 6855), (4570, 4611)]