390940389

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{41647}}^1$

素因数の和:41809

約数の個数: 24

約数和(自身を含む): 649708800

約数和(自身を除く): 258768411

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 3129, 9387, 41647, 124941, 291529, 374823, 874587, 2623761, 6205403, 18616209, 43437821, 55848627, 130313463, 390940389]

約数ペア:

[(1, 390940389), (3, 130313463), (7, 55848627), (9, 43437821), (21, 18616209), (63, 6205403), (149, 2623761), (447, 874587), (1043, 374823), (1341, 291529), (3129, 124941), (9387, 41647)]