87912981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 146240640

約数和(自身を除く): 58327659

約数列:

[1, 3, 9, 13, 19, 39, 57, 71, 117, 171, 213, 247, 557, 639, 741, 923, 1349, 1671, 2223, 2769, 4047, 5013, 7241, 8307, 10583, 12141, 17537, 21723, 31749, 39547, 52611, 65169, 95247, 118641, 137579, 157833, 355923, 412737, 514111, 751393, 1238211, 1542333, 2254179, 4626999, 6762537, 9768109, 29304327, 87912981]

約数ペア:

[(1, 87912981), (3, 29304327), (9, 9768109), (13, 6762537), (19, 4626999), (39, 2254179), (57, 1542333), (71, 1238211), (117, 751393), (171, 514111), (213, 412737), (247, 355923), (557, 157833), (639, 137579), (741, 118641), (923, 95247), (1349, 65169), (1671, 52611), (2223, 39547), (2769, 31749), (4047, 21723), (5013, 17537), (7241, 12141), (8307, 10583)]