20819666

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{24379}}^1$

素因数の和:24449

約数の個数: 16

約数和(自身を含む): 36277440

約数和(自身を除く): 15457774

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 24379, 48758, 170653, 341306, 1487119, 2974238, 10409833, 20819666]

約数ペア:

[(1, 20819666), (2, 10409833), (7, 2974238), (14, 1487119), (61, 341306), (122, 170653), (427, 48758), (854, 24379)]