21881585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3037}}^1$

素因数の和:3184

約数の個数: 16

約数和(自身を含む): 28873152

約数和(自身を除く): 6991567

約数列:

[1, 5, 11, 55, 131, 655, 1441, 3037, 7205, 15185, 33407, 167035, 397847, 1989235, 4376317, 21881585]

約数ペア:

[(1, 21881585), (5, 4376317), (11, 1989235), (55, 397847), (131, 167035), (655, 33407), (1441, 15185), (3037, 7205)]