21984405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{35747}}^1$

素因数の和:35796

約数の個数: 16

約数和(自身を含む): 36033984

約数和(自身を除く): 14049579

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 35747, 107241, 178735, 536205, 1465627, 4396881, 7328135, 21984405]

約数ペア:

[(1, 21984405), (3, 7328135), (5, 4396881), (15, 1465627), (41, 536205), (123, 178735), (205, 107241), (615, 35747)]