25181961

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 39874560

約数和(自身を除く): 14692599

約数列:

[1, 3, 7, 21, 43, 79, 129, 237, 301, 353, 553, 903, 1059, 1659, 2471, 3397, 7413, 10191, 15179, 23779, 27887, 45537, 71337, 83661, 106253, 195209, 318759, 585627, 1199141, 3597423, 8393987, 25181961]

約数ペア:

[(1, 25181961), (3, 8393987), (7, 3597423), (21, 1199141), (43, 585627), (79, 318759), (129, 195209), (237, 106253), (301, 83661), (353, 71337), (553, 45537), (903, 27887), (1059, 23779), (1659, 15179), (2471, 10191), (3397, 7413)]