21412940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34537}}^1$

素因数の和:34577

約数の個数: 24

約数和(自身を含む): 46419072

約数和(自身を除く): 25006132

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34537, 69074, 138148, 172685, 345370, 690740, 1070647, 2141294, 4282588, 5353235, 10706470, 21412940]

約数ペア:

[(1, 21412940), (2, 10706470), (4, 5353235), (5, 4282588), (10, 2141294), (20, 1070647), (31, 690740), (62, 345370), (124, 172685), (155, 138148), (310, 69074), (620, 34537)]