19942486

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5273}}^1$

素因数の和:5367

約数の個数: 16

約数和(自身を含む): 31390848

約数和(自身を除く): 11448362

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5273, 10546, 163463, 321653, 326926, 643306, 9971243, 19942486]

約数ペア:

[(1, 19942486), (2, 9971243), (31, 643306), (61, 326926), (62, 321653), (122, 163463), (1891, 10546), (3782, 5273)]