218211847

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{261959}}^1$

素因数の和:261990

約数の個数: 12

約数和(自身を含む): 268770960

約数和(自身を除く): 50559113

約数列:

[1, 7, 17, 49, 119, 833, 261959, 1833713, 4453303, 12835991, 31173121, 218211847]

約数ペア:

[(1, 218211847), (7, 31173121), (17, 12835991), (49, 4453303), (119, 1833713), (833, 261959)]