21980794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4363}}^1$

素因数の和:4605

約数の個数: 16

約数和(自身を含む): 36133920

約数和(自身を除く): 14153126

約数列:

[1, 2, 11, 22, 229, 458, 2519, 4363, 5038, 8726, 47993, 95986, 999127, 1998254, 10990397, 21980794]

約数ペア:

[(1, 21980794), (2, 10990397), (11, 1998254), (22, 999127), (229, 95986), (458, 47993), (2519, 8726), (4363, 5038)]