21494557

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{827}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 25436160

約数和(自身を除く): 3941603

約数列:

[1, 7, 47, 79, 329, 553, 827, 3713, 5789, 25991, 38869, 65333, 272083, 457331, 3070651, 21494557]

約数ペア:

[(1, 21494557), (7, 3070651), (47, 457331), (79, 272083), (329, 65333), (553, 38869), (827, 25991), (3713, 5789)]