21430268

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{3797}}^1$

素因数の和:3901

約数の個数: 24

約数和(自身を含む): 40198032

約数和(自身を除く): 18767764

約数列:

[1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 3797, 5644, 7594, 15188, 64549, 129098, 258196, 315151, 630302, 1260604, 5357567, 10715134, 21430268]

約数ペア:

[(1, 21430268), (2, 10715134), (4, 5357567), (17, 1260604), (34, 630302), (68, 315151), (83, 258196), (166, 129098), (332, 64549), (1411, 15188), (2822, 7594), (3797, 5644)]