19210705

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 23562000

約数和(自身を除く): 4351295

約数列:

[1, 5, 101, 109, 349, 505, 545, 1745, 11009, 35249, 38041, 55045, 176245, 190205, 3842141, 19210705]

約数ペア:

[(1, 19210705), (5, 3842141), (101, 190205), (109, 176245), (349, 55045), (505, 38041), (545, 35249), (1745, 11009)]