19811806

素因数分解:

$2^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3529}}^1$

素因数の和:3939

約数の個数: 16

約数和(自身を含む): 34057440

約数和(自身を除く): 14245634

約数列:

[1, 2, 7, 14, 401, 802, 2807, 3529, 5614, 7058, 24703, 49406, 1415129, 2830258, 9905903, 19811806]

約数ペア:

[(1, 19811806), (2, 9905903), (7, 2830258), (14, 1415129), (401, 49406), (802, 24703), (2807, 7058), (3529, 5614)]