20107871

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4877}}^1$

素因数の和:4934

約数の個数: 16

約数和(自身を含む): 24975360

約数和(自身を除く): 4867489

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 4877, 34139, 92663, 151187, 648641, 1058309, 2872553, 20107871]

約数ペア:

[(1, 20107871), (7, 2872553), (19, 1058309), (31, 648641), (133, 151187), (217, 92663), (589, 34139), (4123, 4877)]