19147257

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 28481544

約数和(自身を除く): 9334287

約数列:

[1, 3, 9, 53, 137, 159, 293, 411, 477, 879, 1233, 2637, 7261, 15529, 21783, 40141, 46587, 65349, 120423, 139761, 361269, 2127473, 6382419, 19147257]

約数ペア:

[(1, 19147257), (3, 6382419), (9, 2127473), (53, 361269), (137, 139761), (159, 120423), (293, 65349), (411, 46587), (477, 40141), (879, 21783), (1233, 15529), (2637, 7261)]