21342009

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{8971}}^1$

素因数の和:9048

約数の個数: 16

約数和(自身を含む): 31150784

約数和(自身を除く): 9808775

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 8971, 26913, 116623, 349869, 547231, 1641693, 7114003, 21342009]

約数ペア:

[(1, 21342009), (3, 7114003), (13, 1641693), (39, 547231), (61, 349869), (183, 116623), (793, 26913), (2379, 8971)]