31987319

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 14461321

約数列:

[1, 7, 13, 17, 23, 29, 31, 91, 119, 161, 203, 217, 221, 299, 377, 391, 403, 493, 527, 667, 713, 899, 1547, 2093, 2639, 2737, 2821, 3451, 3689, 4669, 4991, 5083, 6293, 6409, 6851, 8671, 9269, 11339, 11687, 12121, 15283, 20677, 35581, 44863, 47957, 60697, 64883, 79373, 81809, 84847, 106981, 144739, 147407, 157573, 198679, 268801, 351509, 1031849, 1103011, 1390753, 1881607, 2460563, 4569617, 31987319]

約数ペア:

[(1, 31987319), (7, 4569617), (13, 2460563), (17, 1881607), (23, 1390753), (29, 1103011), (31, 1031849), (91, 351509), (119, 268801), (161, 198679), (203, 157573), (217, 147407), (221, 144739), (299, 106981), (377, 84847), (391, 81809), (403, 79373), (493, 64883), (527, 60697), (667, 47957), (713, 44863), (899, 35581), (1547, 20677), (2093, 15283), (2639, 12121), (2737, 11687), (2821, 11339), (3451, 9269), (3689, 8671), (4669, 6851), (4991, 6409), (5083, 6293)]