21878122

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53887}}^1$

素因数の和:53925

約数の個数: 16

約数和(自身を含む): 38799360

約数和(自身を除く): 16921238

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 53887, 107774, 377209, 754418, 1562723, 3125446, 10939061, 21878122]

約数ペア:

[(1, 21878122), (2, 10939061), (7, 3125446), (14, 1562723), (29, 754418), (58, 377209), (203, 107774), (406, 53887)]