19819778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{601}}^1\times {\mathrm{1499}}^1$

素因数の和:2113

約数の個数: 16

約数和(自身を含む): 32508000

約数和(自身を除く): 12688222

約数列:

[1, 2, 11, 22, 601, 1202, 1499, 2998, 6611, 13222, 16489, 32978, 900899, 1801798, 9909889, 19819778]

約数ペア:

[(1, 19819778), (2, 9909889), (11, 1801798), (22, 900899), (601, 32978), (1202, 16489), (1499, 13222), (2998, 6611)]