90189351

素因数分解:

$3^2\times 7^2\times {\mathrm{204511}}^1$

素因数の和:204531

約数の個数: 18

約数和(自身を含む): 151543392

約数和(自身を除く): 61354041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 204511, 613533, 1431577, 1840599, 4294731, 10021039, 12884193, 30063117, 90189351]

約数ペア:

[(1, 90189351), (3, 30063117), (7, 12884193), (9, 10021039), (21, 4294731), (49, 1840599), (63, 1431577), (147, 613533), (441, 204511)]