21345945

素因数分解:

$3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6269}}^1$

素因数の和:6504

約数の個数: 16

約数和(自身を含む): 34309440

約数和(自身を除く): 12963495

約数列:

[1, 3, 5, 15, 227, 681, 1135, 3405, 6269, 18807, 31345, 94035, 1423063, 4269189, 7115315, 21345945]

約数ペア:

[(1, 21345945), (3, 7115315), (5, 4269189), (15, 1423063), (227, 94035), (681, 31345), (1135, 18807), (3405, 6269)]