201515721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{19891}}^1$

素因数の和:20212

約数の個数: 16

約数和(自身を含む): 294083328

約数和(自身を除く): 92567607

約数列:

[1, 3, 11, 33, 307, 921, 3377, 10131, 19891, 59673, 218801, 656403, 6106537, 18319611, 67171907, 201515721]

約数ペア:

[(1, 201515721), (3, 67171907), (11, 18319611), (33, 6106537), (307, 656403), (921, 218801), (3377, 59673), (10131, 19891)]