28580139

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3463}}^1$

素因数の和:3607

約数の個数: 24

約数和(自身を含む): 47553792

約数和(自身を除く): 18973653

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 3463, 8253, 10389, 24241, 31167, 72723, 218169, 453653, 1360959, 3175571, 4082877, 9526713, 28580139]

約数ペア:

[(1, 28580139), (3, 9526713), (7, 4082877), (9, 3175571), (21, 1360959), (63, 453653), (131, 218169), (393, 72723), (917, 31167), (1179, 24241), (2751, 10389), (3463, 8253)]