19742878

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{5171}}^1$

素因数の和:5279

約数の個数: 16

約数和(自身を含む): 31280256

約数和(自身を除く): 11537378

約数列:

[1, 2, 23, 46, 83, 166, 1909, 3818, 5171, 10342, 118933, 237866, 429193, 858386, 9871439, 19742878]

約数ペア:

[(1, 19742878), (2, 9871439), (23, 858386), (46, 429193), (83, 237866), (166, 118933), (1909, 10342), (3818, 5171)]