21012970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191027}}^1$

素因数の和:191045

約数の個数: 16

約数和(自身を含む): 41262048

約数和(自身を除く): 20249078

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191027, 382054, 955135, 1910270, 2101297, 4202594, 10506485, 21012970]

約数ペア:

[(1, 21012970), (2, 10506485), (5, 4202594), (10, 2101297), (11, 1910270), (22, 955135), (55, 382054), (110, 191027)]