21717092

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 40393080

約数和(自身を除く): 18675988

約数列:

[1, 2, 4, 17, 34, 68, 389, 778, 821, 1556, 1642, 3284, 6613, 13226, 13957, 26452, 27914, 55828, 319369, 638738, 1277476, 5429273, 10858546, 21717092]

約数ペア:

[(1, 21717092), (2, 10858546), (4, 5429273), (17, 1277476), (34, 638738), (68, 319369), (389, 55828), (778, 27914), (821, 26452), (1556, 13957), (1642, 13226), (3284, 6613)]