21756668

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{10321}}^1$

素因数の和:10373

約数の個数: 24

約数和(自身を含む): 41618304

約数和(自身を除く): 19861636

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 10321, 20642, 41284, 175457, 319951, 350914, 639902, 701828, 1279804, 5439167, 10878334, 21756668]

約数ペア:

[(1, 21756668), (2, 10878334), (4, 5439167), (17, 1279804), (31, 701828), (34, 639902), (62, 350914), (68, 319951), (124, 175457), (527, 41284), (1054, 20642), (2108, 10321)]