720726069

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1806331}}^1$

素因数の和:1806360

約数の個数: 16

約数和(自身を含む): 1156052480

約数和(自身を除く): 435326411

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1806331, 5418993, 12644317, 34320289, 37932951, 102960867, 240242023, 720726069]

約数ペア:

[(1, 720726069), (3, 240242023), (7, 102960867), (19, 37932951), (21, 34320289), (57, 12644317), (133, 5418993), (399, 1806331)]