2157122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1465

約数の個数: 16

約数和(自身を含む): 3582144

約数和(自身を除く): 1425022

約数列:

[1, 2, 11, 22, 71, 142, 781, 1381, 1562, 2762, 15191, 30382, 98051, 196102, 1078561, 2157122]

約数ペア:

[(1, 2157122), (2, 1078561), (11, 196102), (22, 98051), (71, 30382), (142, 15191), (781, 2762), (1381, 1562)]