20181553

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3701}}^1$

素因数の和:3768

約数の個数: 16

約数和(自身を含む): 24877440

約数和(自身を除く): 4695887

約数列:

[1, 7, 19, 41, 133, 287, 779, 3701, 5453, 25907, 70319, 151741, 492233, 1062187, 2883079, 20181553]

約数ペア:

[(1, 20181553), (7, 2883079), (19, 1062187), (41, 492233), (133, 151741), (287, 70319), (779, 25907), (3701, 5453)]