661278

素因数分解:

$2^1\times 3^1\times {\mathrm{307}}^1\times {\mathrm{359}}^1$

素因数の和:671

約数の個数: 16

約数和(自身を含む): 1330560

約数和(自身を除く): 669282

約数列:

[1, 2, 3, 6, 307, 359, 614, 718, 921, 1077, 1842, 2154, 110213, 220426, 330639, 661278]

約数ペア:

[(1, 661278), (2, 330639), (3, 220426), (6, 110213), (307, 2154), (359, 1842), (614, 1077), (718, 921)]