1211258881

素因数分解:

$7^4\times {\mathrm{131}}^1\times {\mathrm{3851}}^1$

素因数の和:4010

約数の個数: 20

約数和(自身を含む): 1424207664

約数和(自身を除く): 212948783

約数列:

[1, 7, 49, 131, 343, 917, 2401, 3851, 6419, 26957, 44933, 188699, 314531, 504481, 1320893, 3531367, 9246251, 24719569, 173036983, 1211258881]

約数ペア:

[(1, 1211258881), (7, 173036983), (49, 24719569), (131, 9246251), (343, 3531367), (917, 1320893), (2401, 504481), (3851, 314531), (6419, 188699), (26957, 44933)]