21309870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{3719}}^1$

素因数の和:3920

約数の個数: 32

約数和(自身を含む): 51425280

約数和(自身を除く): 30115410

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 191, 382, 573, 955, 1146, 1910, 2865, 3719, 5730, 7438, 11157, 18595, 22314, 37190, 55785, 111570, 710329, 1420658, 2130987, 3551645, 4261974, 7103290, 10654935, 21309870]

約数ペア:

[(1, 21309870), (2, 10654935), (3, 7103290), (5, 4261974), (6, 3551645), (10, 2130987), (15, 1420658), (30, 710329), (191, 111570), (382, 55785), (573, 37190), (955, 22314), (1146, 18595), (1910, 11157), (2865, 7438), (3719, 5730)]