21158110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72959}}^1$

素因数の和:72995

約数の個数: 16

約数和(自身を含む): 39398400

約数和(自身を除く): 18240290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72959, 145918, 364795, 729590, 2115811, 4231622, 10579055, 21158110]

約数ペア:

[(1, 21158110), (2, 10579055), (5, 4231622), (10, 2115811), (29, 729590), (58, 364795), (145, 145918), (290, 72959)]