17920557

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 26604864

約数和(自身を除く): 8684307

約数列:

[1, 3, 9, 67, 113, 201, 263, 339, 603, 789, 1017, 2367, 7571, 17621, 22713, 29719, 52863, 68139, 89157, 158589, 267471, 1991173, 5973519, 17920557]

約数ペア:

[(1, 17920557), (3, 5973519), (9, 1991173), (67, 267471), (113, 158589), (201, 89157), (263, 68139), (339, 52863), (603, 29719), (789, 22713), (1017, 17621), (2367, 7571)]