19904534

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{3433}}^1$

素因数の和:3671

約数の個数: 16

約数和(自身を含む): 32307072

約数和(自身を除く): 12402538

約数列:

[1, 2, 13, 26, 223, 446, 2899, 3433, 5798, 6866, 44629, 89258, 765559, 1531118, 9952267, 19904534]

約数ペア:

[(1, 19904534), (2, 9952267), (13, 1531118), (26, 765559), (223, 89258), (446, 44629), (2899, 6866), (3433, 5798)]