1397142719

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1\times {\mathrm{1831}}^1$

素因数の和:3686

約数の個数: 16

約数和(自身を含む): 1624705536

約数和(自身を除く): 227562817

約数列:

[1, 7, 61, 427, 1787, 1831, 12509, 12817, 109007, 111691, 763049, 781837, 3271997, 22903979, 199591817, 1397142719]

約数ペア:

[(1, 1397142719), (7, 199591817), (61, 22903979), (427, 3271997), (1787, 781837), (1831, 763049), (12509, 111691), (12817, 109007)]