21271610

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21061}}^1$

素因数の和:21169

約数の個数: 16

約数和(自身を含む): 38669832

約数和(自身を除く): 17398222

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 21061, 42122, 105305, 210610, 2127161, 4254322, 10635805, 21271610]

約数ペア:

[(1, 21271610), (2, 10635805), (5, 4254322), (10, 2127161), (101, 210610), (202, 105305), (505, 42122), (1010, 21061)]