19940139

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4021}}^1$

素因数の和:4075

約数の個数: 24

約数和(自身を含む): 31371600

約数和(自身を除く): 11431461

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4021, 4959, 12063, 36189, 76399, 116609, 229197, 349827, 687591, 1049481, 2215571, 6646713, 19940139]

約数ペア:

[(1, 19940139), (3, 6646713), (9, 2215571), (19, 1049481), (29, 687591), (57, 349827), (87, 229197), (171, 116609), (261, 76399), (551, 36189), (1653, 12063), (4021, 4959)]