287487039

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{881}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 450455040

約数和(自身を除く): 162968001

約数列:

[1, 3, 7, 21, 41, 123, 287, 379, 861, 881, 1137, 2643, 2653, 6167, 7959, 15539, 18501, 36121, 46617, 108363, 108773, 252847, 326319, 333899, 758541, 1001697, 2337293, 7011879, 13689859, 41069577, 95829013, 287487039]

約数ペア:

[(1, 287487039), (3, 95829013), (7, 41069577), (21, 13689859), (41, 7011879), (123, 2337293), (287, 1001697), (379, 758541), (861, 333899), (881, 326319), (1137, 252847), (2643, 108773), (2653, 108363), (6167, 46617), (7959, 36121), (15539, 18501)]