21398047

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2381}}^1$

素因数の和:2454

約数の個数: 16

約数和(自身を含む): 25153920

約数和(自身を除く): 3755873

約数列:

[1, 11, 19, 43, 209, 473, 817, 2381, 8987, 26191, 45239, 102383, 497629, 1126213, 1945277, 21398047]

約数ペア:

[(1, 21398047), (11, 1945277), (19, 1126213), (43, 497629), (209, 102383), (473, 45239), (817, 26191), (2381, 8987)]