21656733

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{25153}}^1$

素因数の和:25204

約数の個数: 16

約数和(自身を含む): 33806976

約数和(自身を除く): 12150243

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 25153, 75459, 176071, 528213, 1031273, 3093819, 7218911, 21656733]

約数ペア:

[(1, 21656733), (3, 7218911), (7, 3093819), (21, 1031273), (41, 528213), (123, 176071), (287, 75459), (861, 25153)]