20398666

素因数分解:

$2^1\times {\mathrm{19}}^3\times {\mathrm{1487}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 32319360

約数和(自身を除く): 11920694

約数列:

[1, 2, 19, 38, 361, 722, 1487, 2974, 6859, 13718, 28253, 56506, 536807, 1073614, 10199333, 20398666]

約数ペア:

[(1, 20398666), (2, 10199333), (19, 1073614), (38, 536807), (361, 56506), (722, 28253), (1487, 13718), (2974, 6859)]