21907850

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{5279}}^1$

素因数の和:5374

約数の個数: 24

約数和(自身を含む): 41247360

約数和(自身を除く): 19339510

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 5279, 10558, 26395, 52790, 131975, 263950, 438157, 876314, 2190785, 4381570, 10953925, 21907850]

約数ペア:

[(1, 21907850), (2, 10953925), (5, 4381570), (10, 2190785), (25, 876314), (50, 438157), (83, 263950), (166, 131975), (415, 52790), (830, 26395), (2075, 10558), (4150, 5279)]