19978442

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{601}}^1\times {\mathrm{1511}}^1$

素因数の和:2125

約数の個数: 16

約数和(自身を含む): 32768064

約数和(自身を除く): 12789622

約数列:

[1, 2, 11, 22, 601, 1202, 1511, 3022, 6611, 13222, 16621, 33242, 908111, 1816222, 9989221, 19978442]

約数ペア:

[(1, 19978442), (2, 9989221), (11, 1816222), (22, 908111), (601, 33242), (1202, 16621), (1511, 13222), (3022, 6611)]