28297778

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{1423}}^1$

素因数の和:1649

約数の個数: 16

約数和(自身を含む): 43437696

約数和(自身を除く): 15139918

約数列:

[1, 2, 61, 122, 163, 326, 1423, 2846, 9943, 19886, 86803, 173606, 231949, 463898, 14148889, 28297778]

約数ペア:

[(1, 28297778), (2, 14148889), (61, 463898), (122, 231949), (163, 173606), (326, 86803), (1423, 19886), (2846, 9943)]