21905896

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 41977440

約数和(自身を除く): 20071544

約数列:

[1, 2, 4, 8, 107, 157, 163, 214, 314, 326, 428, 628, 652, 856, 1256, 1304, 16799, 17441, 25591, 33598, 34882, 51182, 67196, 69764, 102364, 134392, 139528, 204728, 2738237, 5476474, 10952948, 21905896]

約数ペア:

[(1, 21905896), (2, 10952948), (4, 5476474), (8, 2738237), (107, 204728), (157, 139528), (163, 134392), (214, 102364), (314, 69764), (326, 67196), (428, 51182), (628, 34882), (652, 33598), (856, 25591), (1256, 17441), (1304, 16799)]