21380766

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{323951}}^1$

素因数の和:323967

約数の個数: 16

約数和(自身を含む): 46649088

約数和(自身を除く): 25268322

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 323951, 647902, 971853, 1943706, 3563461, 7126922, 10690383, 21380766]

約数ペア:

[(1, 21380766), (2, 10690383), (3, 7126922), (6, 3563461), (11, 1943706), (22, 971853), (33, 647902), (66, 323951)]