261013207

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{77521}}^1$

素因数の和:77578

約数の個数: 16

約数和(自身を含む): 329933632

約数和(自身を除く): 68920425

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 77521, 542647, 1007773, 2868277, 7054411, 20077939, 37287601, 261013207]

約数ペア:

[(1, 261013207), (7, 37287601), (13, 20077939), (37, 7054411), (91, 2868277), (259, 1007773), (481, 542647), (3367, 77521)]