20686442

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{24223}}^1$

素因数の和:24293

約数の個数: 16

約数和(自身を含む): 36045312

約数和(自身を除く): 15358870

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 24223, 48446, 169561, 339122, 1477603, 2955206, 10343221, 20686442]

約数ペア:

[(1, 20686442), (2, 10343221), (7, 2955206), (14, 1477603), (61, 339122), (122, 169561), (427, 48446), (854, 24223)]