18431631

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{727}}^1$

素因数の和:1052

約数の個数: 20

約数和(自身を含む): 27659632

約数和(自身を除く): 9228001

約数列:

[1, 3, 9, 27, 81, 313, 727, 939, 2181, 2817, 6543, 8451, 19629, 25353, 58887, 227551, 682653, 2047959, 6143877, 18431631]

約数ペア:

[(1, 18431631), (3, 6143877), (9, 2047959), (27, 682653), (81, 227551), (313, 58887), (727, 25353), (939, 19629), (2181, 8451), (2817, 6543)]