20128207

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 23030784

約数和(自身を除く): 2902577

約数列:

[1, 11, 31, 67, 341, 737, 881, 2077, 9691, 22847, 27311, 59027, 300421, 649297, 1829837, 20128207]

約数ペア:

[(1, 20128207), (11, 1829837), (31, 649297), (67, 300421), (341, 59027), (737, 27311), (881, 22847), (2077, 9691)]