255164721

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 394307328

約数和(自身を除く): 139142607

約数列:

[1, 3, 7, 21, 157, 193, 401, 471, 579, 1099, 1203, 1351, 2807, 3297, 4053, 8421, 30301, 62957, 77393, 90903, 188871, 212107, 232179, 440699, 541751, 636321, 1322097, 1625253, 12150701, 36452103, 85054907, 255164721]

約数ペア:

[(1, 255164721), (3, 85054907), (7, 36452103), (21, 12150701), (157, 1625253), (193, 1322097), (401, 636321), (471, 541751), (579, 440699), (1099, 232179), (1203, 212107), (1351, 188871), (2807, 90903), (3297, 77393), (4053, 62957), (8421, 30301)]