20634405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1583}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 15860955

約数列:

[1, 3, 5, 11, 15, 33, 55, 79, 165, 237, 395, 869, 1185, 1583, 2607, 4345, 4749, 7915, 13035, 17413, 23745, 52239, 87065, 125057, 261195, 375171, 625285, 1375627, 1875855, 4126881, 6878135, 20634405]

約数ペア:

[(1, 20634405), (3, 6878135), (5, 4126881), (11, 1875855), (15, 1375627), (33, 625285), (55, 375171), (79, 261195), (165, 125057), (237, 87065), (395, 52239), (869, 23745), (1185, 17413), (1583, 13035), (2607, 7915), (4345, 4749)]