20215972

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10169}}^1$

素因数の和:10251

約数の個数: 24

約数和(自身を含む): 41005440

約数和(自身を除く): 20789468

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10169, 20338, 40676, 71183, 142366, 284732, 721999, 1443998, 2887996, 5053993, 10107986, 20215972]

約数ペア:

[(1, 20215972), (2, 10107986), (4, 5053993), (7, 2887996), (14, 1443998), (28, 721999), (71, 284732), (142, 142366), (284, 71183), (497, 40676), (994, 20338), (1988, 10169)]