2156994749

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{42863}}^1$

素因数の和:42969

約数の個数: 24

約数和(自身を含む): 2736437760

約数和(自身を除く): 579443011

約数列:

[1, 7, 13, 49, 79, 91, 553, 637, 1027, 3871, 7189, 42863, 50323, 300041, 557219, 2100287, 3386177, 3900533, 23703239, 27303731, 44020301, 165922673, 308142107, 2156994749]

約数ペア:

[(1, 2156994749), (7, 308142107), (13, 165922673), (49, 44020301), (79, 27303731), (91, 23703239), (553, 3900533), (637, 3386177), (1027, 2100287), (3871, 557219), (7189, 300041), (42863, 50323)]