20454917

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 24207360

約数和(自身を除く): 3752443

約数列:

[1, 7, 47, 79, 329, 553, 787, 3713, 5509, 25991, 36989, 62173, 258923, 435211, 2922131, 20454917]

約数ペア:

[(1, 20454917), (7, 2922131), (47, 435211), (79, 258923), (329, 62173), (553, 36989), (787, 25991), (3713, 5509)]