21721167406

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{2819}}^1\times {\mathrm{81971}}^1$

素因数の和:84839

約数の個数: 16

約数和(自身を含む): 33287189760

約数和(自身を除く): 11566022354

約数列:

[1, 2, 47, 94, 2819, 5638, 81971, 132493, 163942, 264986, 3852637, 7705274, 231076249, 462152498, 10860583703, 21721167406]

約数ペア:

[(1, 21721167406), (2, 10860583703), (47, 462152498), (94, 231076249), (2819, 7705274), (5638, 3852637), (81971, 264986), (132493, 163942)]