21120435

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67049}}^1$

素因数の和:67067

約数の個数: 24

約数和(自身を含む): 41839200

約数和(自身を除く): 20718765

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 67049, 201147, 335245, 469343, 603441, 1005735, 1408029, 2346715, 3017205, 4224087, 7040145, 21120435]

約数ペア:

[(1, 21120435), (3, 7040145), (5, 4224087), (7, 3017205), (9, 2346715), (15, 1408029), (21, 1005735), (35, 603441), (45, 469343), (63, 335245), (105, 201147), (315, 67049)]