19901674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4229}}^1$

素因数の和:4425

約数の個数: 16

約数和(自身を含む): 32334120

約数和(自身を除く): 12432446

約数列:

[1, 2, 13, 26, 181, 362, 2353, 4229, 4706, 8458, 54977, 109954, 765449, 1530898, 9950837, 19901674]

約数ペア:

[(1, 19901674), (2, 9950837), (13, 1530898), (26, 765449), (181, 109954), (362, 54977), (2353, 8458), (4229, 4706)]