19452778

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{3889}}^1$

素因数の和:3993

約数の個数: 16

約数和(自身を含む): 30388680

約数和(自身を除く): 10935902

約数列:

[1, 2, 41, 61, 82, 122, 2501, 3889, 5002, 7778, 159449, 237229, 318898, 474458, 9726389, 19452778]

約数ペア:

[(1, 19452778), (2, 9726389), (41, 474458), (61, 318898), (82, 237229), (122, 159449), (2501, 7778), (3889, 5002)]