81787641

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 123325440

約数和(自身を除く): 41537799

約数列:

[1, 3, 13, 31, 39, 61, 93, 183, 403, 793, 1109, 1209, 1891, 2379, 3327, 5673, 14417, 24583, 34379, 43251, 67649, 73749, 103137, 202947, 446927, 879437, 1340781, 2097119, 2638311, 6291357, 27262547, 81787641]

約数ペア:

[(1, 81787641), (3, 27262547), (13, 6291357), (31, 2638311), (39, 2097119), (61, 1340781), (93, 879437), (183, 446927), (403, 202947), (793, 103137), (1109, 73749), (1209, 67649), (1891, 43251), (2379, 34379), (3327, 24583), (5673, 14417)]