21315110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125383}}^1$

素因数の和:125407

約数の個数: 16

約数和(自身を含む): 40624416

約数和(自身を除く): 19309306

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125383, 250766, 626915, 1253830, 2131511, 4263022, 10657555, 21315110]

約数ペア:

[(1, 21315110), (2, 10657555), (5, 4263022), (10, 2131511), (17, 1253830), (34, 626915), (85, 250766), (170, 125383)]