21565724

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{3821}}^1$

素因数の和:3925

約数の個数: 24

約数和(自身を含む): 40452048

約数和(自身を除く): 18886324

約数列:

[1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 3821, 5644, 7642, 15284, 64957, 129914, 259828, 317143, 634286, 1268572, 5391431, 10782862, 21565724]

約数ペア:

[(1, 21565724), (2, 10782862), (4, 5391431), (17, 1268572), (34, 634286), (68, 317143), (83, 259828), (166, 129914), (332, 64957), (1411, 15284), (2822, 7642), (3821, 5644)]