31906889

素因数分解:

$7^4\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 20

約数和(自身を含む): 37880724

約数和(自身を除く): 5973835

約数列:

[1, 7, 49, 97, 137, 343, 679, 959, 2401, 4753, 6713, 13289, 33271, 46991, 93023, 232897, 328937, 651161, 4558127, 31906889]

約数ペア:

[(1, 31906889), (7, 4558127), (49, 651161), (97, 328937), (137, 232897), (343, 93023), (679, 46991), (959, 33271), (2401, 13289), (4753, 6713)]