21291854

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20201}}^1$

素因数の和:20251

約数の個数: 16

約数和(自身を含む): 34909056

約数和(自身を除く): 13617202

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20201, 40402, 343417, 626231, 686834, 1252462, 10645927, 21291854]

約数ペア:

[(1, 21291854), (2, 10645927), (17, 1252462), (31, 686834), (34, 626231), (62, 343417), (527, 40402), (1054, 20201)]