19974490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{117497}}^1$

素因数の和:117521

約数の個数: 16

約数和(自身を含む): 38069352

約数和(自身を除く): 18094862

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 117497, 234994, 587485, 1174970, 1997449, 3994898, 9987245, 19974490]

約数ペア:

[(1, 19974490), (2, 9987245), (5, 3994898), (10, 1997449), (17, 1174970), (34, 587485), (85, 234994), (170, 117497)]