18291969

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{911}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 27885312

約数和(自身を除く): 9593343

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 911, 2231, 2733, 6693, 8199, 20079, 20953, 62859, 88367, 188577, 265101, 795303, 2032441, 6097323, 18291969]

約数ペア:

[(1, 18291969), (3, 6097323), (9, 2032441), (23, 795303), (69, 265101), (97, 188577), (207, 88367), (291, 62859), (873, 20953), (911, 20079), (2231, 8199), (2733, 6693)]