12990523

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 16396800

約数和(自身を除く): 3406277

約数列:

[1, 7, 13, 79, 91, 139, 169, 553, 973, 1027, 1183, 1807, 7189, 10981, 12649, 13351, 23491, 76867, 93457, 142753, 164437, 999271, 1855789, 12990523]

約数ペア:

[(1, 12990523), (7, 1855789), (13, 999271), (79, 164437), (91, 142753), (139, 93457), (169, 76867), (553, 23491), (973, 13351), (1027, 12649), (1183, 10981), (1807, 7189)]