261520233

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{379}}^1\times {\mathrm{1361}}^1$

素因数の和:1769

約数の個数: 24

約数和(自身を含む): 378853920

約数和(自身を除く): 117333687

約数列:

[1, 3, 13, 39, 169, 379, 507, 1137, 1361, 4083, 4927, 14781, 17693, 53079, 64051, 192153, 230009, 515819, 690027, 1547457, 6705647, 20116941, 87173411, 261520233]

約数ペア:

[(1, 261520233), (3, 87173411), (13, 20116941), (39, 6705647), (169, 1547457), (379, 690027), (507, 515819), (1137, 230009), (1361, 192153), (4083, 64051), (4927, 53079), (14781, 17693)]