21485359

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 25363456

約数和(自身を除く): 3878097

約数列:

[1, 7, 61, 67, 427, 469, 751, 4087, 5257, 28609, 45811, 50317, 320677, 352219, 3069337, 21485359]

約数ペア:

[(1, 21485359), (7, 3069337), (61, 352219), (67, 320677), (427, 50317), (469, 45811), (751, 28609), (4087, 5257)]