21391922

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{4157}}^1$

素因数の和:4273

約数の個数: 16

約数和(自身を含む): 33530112

約数和(自身を除く): 12138190

約数列:

[1, 2, 31, 62, 83, 166, 2573, 4157, 5146, 8314, 128867, 257734, 345031, 690062, 10695961, 21391922]

約数ペア:

[(1, 21391922), (2, 10695961), (31, 690062), (62, 345031), (83, 257734), (166, 128867), (2573, 8314), (4157, 5146)]