19681017

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{769}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 8038983

約数列:

[1, 3, 19, 57, 449, 769, 1347, 2307, 8531, 14611, 25593, 43833, 345281, 1035843, 6560339, 19681017]

約数ペア:

[(1, 19681017), (3, 6560339), (19, 1035843), (57, 345281), (449, 43833), (769, 25593), (1347, 14611), (2307, 8531)]