20914070

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20707}}^1$

素因数の和:20815

約数の個数: 16

約数和(自身を含む): 38019888

約数和(自身を除く): 17105818

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20707, 41414, 103535, 207070, 2091407, 4182814, 10457035, 20914070]

約数ペア:

[(1, 20914070), (2, 10457035), (5, 4182814), (10, 2091407), (101, 207070), (202, 103535), (505, 41414), (1010, 20707)]