21921692

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6911}}^1$

素因数の和:6989

約数の個数: 24

約数和(自身を含む): 41997312

約数和(自身を除く): 20075620

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6911, 13822, 27644, 89843, 179686, 359372, 421571, 843142, 1686284, 5480423, 10960846, 21921692]

約数ペア:

[(1, 21921692), (2, 10960846), (4, 5480423), (13, 1686284), (26, 843142), (52, 421571), (61, 359372), (122, 179686), (244, 89843), (793, 27644), (1586, 13822), (3172, 6911)]