20413679

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 24595200

約数和(自身を除く): 4181521

約数列:

[1, 11, 13, 79, 139, 143, 169, 869, 1027, 1529, 1807, 1859, 10981, 11297, 13351, 19877, 23491, 120791, 142753, 146861, 258401, 1570283, 1855789, 20413679]

約数ペア:

[(1, 20413679), (11, 1855789), (13, 1570283), (79, 258401), (139, 146861), (143, 142753), (169, 120791), (869, 23491), (1027, 19877), (1529, 13351), (1807, 11297), (1859, 10981)]