78431913

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{5209}}^1$

素因数の和:5461

約数の個数: 24

約数和(自身を含む): 130041600

約数和(自身を除く): 51609687

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2151, 5019, 5209, 15057, 15627, 36463, 46881, 109389, 328167, 1244951, 3734853, 8714657, 11204559, 26143971, 78431913]

約数ペア:

[(1, 78431913), (3, 26143971), (7, 11204559), (9, 8714657), (21, 3734853), (63, 1244951), (239, 328167), (717, 109389), (1673, 46881), (2151, 36463), (5019, 15627), (5209, 15057)]