21039251

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1229}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 23911200

約数和(自身を除く): 2871949

約数列:

[1, 17, 19, 53, 323, 901, 1007, 1229, 17119, 20893, 23351, 65137, 396967, 1107329, 1237603, 21039251]

約数ペア:

[(1, 21039251), (17, 1237603), (19, 1107329), (53, 396967), (323, 65137), (901, 23351), (1007, 20893), (1229, 17119)]