26990243

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2039}}^1$

素因数の和:2138

約数の個数: 16

約数和(自身を含む): 32378880

約数和(自身を除く): 5388637

約数列:

[1, 7, 31, 61, 217, 427, 1891, 2039, 13237, 14273, 63209, 124379, 442463, 870653, 3855749, 26990243]

約数ペア:

[(1, 26990243), (7, 3855749), (31, 870653), (61, 442463), (217, 124379), (427, 63209), (1891, 14273), (2039, 13237)]