156978388

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{21317}}^1$

素因数の和:21591

約数の個数: 24

約数和(自身を含む): 315165312

約数和(自身を除く): 158186924

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 3682, 7364, 21317, 42634, 85268, 149219, 298438, 596876, 5606371, 11212742, 22425484, 39244597, 78489194, 156978388]

約数ペア:

[(1, 156978388), (2, 78489194), (4, 39244597), (7, 22425484), (14, 11212742), (28, 5606371), (263, 596876), (526, 298438), (1052, 149219), (1841, 85268), (3682, 42634), (7364, 21317)]