81517545

素因数分解:

$3^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{2393}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 141542856

約数和(自身を除く): 60025311

約数列:

[1, 3, 5, 9, 15, 45, 757, 2271, 2393, 3785, 6813, 7179, 11355, 11965, 21537, 34065, 35895, 107685, 1811501, 5434503, 9057505, 16303509, 27172515, 81517545]

約数ペア:

[(1, 81517545), (3, 27172515), (5, 16303509), (9, 9057505), (15, 5434503), (45, 1811501), (757, 107685), (2271, 35895), (2393, 34065), (3785, 21537), (6813, 11965), (7179, 11355)]