20216817

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39409}}^1$

素因数の和:39437

約数の個数: 16

約数和(自身を含む): 31528000

約数和(自身を除く): 11311183

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39409, 118227, 354681, 748771, 1064043, 2246313, 6738939, 20216817]

約数ペア:

[(1, 20216817), (3, 6738939), (9, 2246313), (19, 1064043), (27, 748771), (57, 354681), (171, 118227), (513, 39409)]