21801656

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51419}}^1$

素因数の和:51478

約数の個数: 16

約数和(自身を含む): 41650200

約数和(自身を除く): 19848544

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51419, 102838, 205676, 411352, 2725207, 5450414, 10900828, 21801656]

約数ペア:

[(1, 21801656), (2, 10900828), (4, 5450414), (8, 2725207), (53, 411352), (106, 205676), (212, 102838), (424, 51419)]