18891315

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2131}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 32926608

約数和(自身を除く): 14035293

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2131, 2955, 6393, 8865, 10655, 19179, 31965, 95895, 419807, 1259421, 2099035, 3778263, 6297105, 18891315]

約数ペア:

[(1, 18891315), (3, 6297105), (5, 3778263), (9, 2099035), (15, 1259421), (45, 419807), (197, 95895), (591, 31965), (985, 19179), (1773, 10655), (2131, 8865), (2955, 6393)]