19993490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181759}}^1$

素因数の和:181777

約数の個数: 16

約数和(自身を含む): 39260160

約数和(自身を除く): 19266670

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181759, 363518, 908795, 1817590, 1999349, 3998698, 9996745, 19993490]

約数ペア:

[(1, 19993490), (2, 9996745), (5, 3998698), (10, 1999349), (11, 1817590), (22, 908795), (55, 363518), (110, 181759)]