161898191

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 212365440

約数和(自身を除く): 50467249

約数列:

[1, 7, 13, 17, 91, 119, 221, 229, 457, 1547, 1603, 2977, 3199, 3893, 5941, 7769, 20839, 27251, 41587, 50609, 54383, 100997, 104653, 354263, 706979, 732571, 1360489, 1779101, 9523423, 12453707, 23128313, 161898191]

約数ペア:

[(1, 161898191), (7, 23128313), (13, 12453707), (17, 9523423), (91, 1779101), (119, 1360489), (221, 732571), (229, 706979), (457, 354263), (1547, 104653), (1603, 100997), (2977, 54383), (3199, 50609), (3893, 41587), (5941, 27251), (7769, 20839)]