21775715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8171}}^1$

素因数の和:8230

約数の個数: 16

約数和(自身を含む): 28830816

約数和(自身を除く): 7055101

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 8171, 40855, 106223, 335011, 531115, 1675055, 4355143, 21775715]

約数ペア:

[(1, 21775715), (5, 4355143), (13, 1675055), (41, 531115), (65, 335011), (205, 106223), (533, 40855), (2665, 8171)]