21800866

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 36230400

約数和(自身を除く): 14429534

約数列:

[1, 2, 19, 29, 38, 58, 73, 146, 271, 542, 551, 1102, 1387, 2117, 2774, 4234, 5149, 7859, 10298, 15718, 19783, 39566, 40223, 80446, 149321, 298642, 375877, 573707, 751754, 1147414, 10900433, 21800866]

約数ペア:

[(1, 21800866), (2, 10900433), (19, 1147414), (29, 751754), (38, 573707), (58, 375877), (73, 298642), (146, 149321), (271, 80446), (542, 40223), (551, 39566), (1102, 19783), (1387, 15718), (2117, 10298), (2774, 7859), (4234, 5149)]