21437091

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4261}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 34130096

約数和(自身を除く): 12693005

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 4261, 5031, 12783, 38349, 55393, 166179, 183223, 498537, 549669, 1649007, 2381899, 7145697, 21437091]

約数ペア:

[(1, 21437091), (3, 7145697), (9, 2381899), (13, 1649007), (39, 549669), (43, 498537), (117, 183223), (129, 166179), (387, 55393), (559, 38349), (1677, 12783), (4261, 5031)]