19988048

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5227}}^1$

素因数の和:5474

約数の個数: 20

約数和(自身を含む): 38896320

約数和(自身を除く): 18908272

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5227, 10454, 20908, 41816, 83632, 1249253, 2498506, 4997012, 9994024, 19988048]

約数ペア:

[(1, 19988048), (2, 9994024), (4, 4997012), (8, 2498506), (16, 1249253), (239, 83632), (478, 41816), (956, 20908), (1912, 10454), (3824, 5227)]