189405

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:98

約数の個数: 32

約数和(自身を含む): 357120

約数和(自身を除く): 167715

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 61, 69, 115, 135, 183, 207, 305, 345, 549, 621, 915, 1035, 1403, 1647, 2745, 3105, 4209, 7015, 8235, 12627, 21045, 37881, 63135, 189405]

約数ペア:

[(1, 189405), (3, 63135), (5, 37881), (9, 21045), (15, 12627), (23, 8235), (27, 7015), (45, 4209), (61, 3105), (69, 2745), (115, 1647), (135, 1403), (183, 1035), (207, 915), (305, 621), (345, 549)]