421875981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{17749}}^1$

素因数の和:17913

約数の個数: 24

約数和(自身を含む): 646100000

約数和(自身を除く): 224224019

約数列:

[1, 3, 9, 19, 57, 139, 171, 417, 1251, 2641, 7923, 17749, 23769, 53247, 159741, 337231, 1011693, 2467111, 3035079, 7401333, 22203999, 46875109, 140625327, 421875981]

約数ペア:

[(1, 421875981), (3, 140625327), (9, 46875109), (19, 22203999), (57, 7401333), (139, 3035079), (171, 2467111), (417, 1011693), (1251, 337231), (2641, 159741), (7923, 53247), (17749, 23769)]