90857221

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7507}}^1$

素因数の和:7553

約数の個数: 24

約数和(自身を含む): 119827680

約数和(自身を除く): 28970459

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1729, 7507, 12103, 52549, 97591, 142633, 367843, 683137, 998431, 1854229, 4781959, 6989017, 12979603, 90857221]

約数ペア:

[(1, 90857221), (7, 12979603), (13, 6989017), (19, 4781959), (49, 1854229), (91, 998431), (133, 683137), (247, 367843), (637, 142633), (931, 97591), (1729, 52549), (7507, 12103)]