21818691

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 32235840

約数和(自身を除く): 10417149

約数列:

[1, 3, 9, 107, 139, 163, 321, 417, 489, 963, 1251, 1467, 14873, 17441, 22657, 44619, 52323, 67971, 133857, 156969, 203913, 2424299, 7272897, 21818691]

約数ペア:

[(1, 21818691), (3, 7272897), (9, 2424299), (107, 203913), (139, 156969), (163, 133857), (321, 67971), (417, 52323), (489, 44619), (963, 22657), (1251, 17441), (1467, 14873)]