20017190

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19819}}^1$

素因数の和:19927

約数の個数: 16

約数和(自身を含む): 36389520

約数和(自身を除く): 16372330

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 19819, 39638, 99095, 198190, 2001719, 4003438, 10008595, 20017190]

約数ペア:

[(1, 20017190), (2, 10008595), (5, 4003438), (10, 2001719), (101, 198190), (202, 99095), (505, 39638), (1010, 19819)]