31725421

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 41932800

約数和(自身を除く): 10207379

約数列:

[1, 7, 13, 19, 59, 91, 133, 247, 311, 413, 767, 1121, 1729, 2177, 4043, 5369, 5909, 7847, 14573, 18349, 28301, 41363, 76817, 102011, 128443, 238537, 348631, 537719, 1669759, 2440417, 4532203, 31725421]

約数ペア:

[(1, 31725421), (7, 4532203), (13, 2440417), (19, 1669759), (59, 537719), (91, 348631), (133, 238537), (247, 128443), (311, 102011), (413, 76817), (767, 41363), (1121, 28301), (1729, 18349), (2177, 14573), (4043, 7847), (5369, 5909)]