20968820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61673}}^1$

素因数の和:61699

約数の個数: 24

約数和(自身を含む): 46625544

約数和(自身を除く): 25656724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61673, 123346, 246692, 308365, 616730, 1048441, 1233460, 2096882, 4193764, 5242205, 10484410, 20968820]

約数ペア:

[(1, 20968820), (2, 10484410), (4, 5242205), (5, 4193764), (10, 2096882), (17, 1233460), (20, 1048441), (34, 616730), (68, 308365), (85, 246692), (170, 123346), (340, 61673)]