218778939

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{2671}}^1$

素因数の和:3175

約数の個数: 24

約数和(自身を含む): 333465600

約数和(自身を除く): 114686661

約数列:

[1, 3, 9, 19, 57, 171, 479, 1437, 2671, 4311, 8013, 9101, 24039, 27303, 50749, 81909, 152247, 456741, 1279409, 3838227, 11514681, 24308771, 72926313, 218778939]

約数ペア:

[(1, 218778939), (3, 72926313), (9, 24308771), (19, 11514681), (57, 3838227), (171, 1279409), (479, 456741), (1437, 152247), (2671, 81909), (4311, 50749), (8013, 27303), (9101, 24039)]