21705736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12277}}^1$

素因数の和:12313

約数の個数: 32

約数和(自身を含む): 46410840

約数和(自身を除く): 24705104

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12277, 24554, 49108, 98216, 159601, 208709, 319202, 417418, 638404, 834836, 1276808, 1669672, 2713217, 5426434, 10852868, 21705736]

約数ペア:

[(1, 21705736), (2, 10852868), (4, 5426434), (8, 2713217), (13, 1669672), (17, 1276808), (26, 834836), (34, 638404), (52, 417418), (68, 319202), (104, 208709), (136, 159601), (221, 98216), (442, 49108), (884, 24554), (1768, 12277)]