20981092

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25097}}^1$

素因数の和:25131

約数の個数: 24

約数和(自身を含む): 42164640

約数和(自身を除く): 21183548

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25097, 50194, 100388, 276067, 476843, 552134, 953686, 1104268, 1907372, 5245273, 10490546, 20981092]

約数ペア:

[(1, 20981092), (2, 10490546), (4, 5245273), (11, 1907372), (19, 1104268), (22, 953686), (38, 552134), (44, 476843), (76, 276067), (209, 100388), (418, 50194), (836, 25097)]