21218103

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 31669248

約数和(自身を除く): 10451145

約数列:

[1, 3, 9, 47, 103, 141, 309, 423, 487, 927, 1461, 4383, 4841, 14523, 22889, 43569, 50161, 68667, 150483, 206001, 451449, 2357567, 7072701, 21218103]

約数ペア:

[(1, 21218103), (3, 7072701), (9, 2357567), (47, 451449), (103, 206001), (141, 150483), (309, 68667), (423, 50161), (487, 43569), (927, 22889), (1461, 14523), (4383, 4841)]