20145357

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 30980664

約数和(自身を除く): 10835307

約数列:

[1, 3, 9, 17, 51, 153, 353, 373, 1059, 1119, 3177, 3357, 6001, 6341, 18003, 19023, 54009, 57069, 131669, 395007, 1185021, 2238373, 6715119, 20145357]

約数ペア:

[(1, 20145357), (3, 6715119), (9, 2238373), (17, 1185021), (51, 395007), (153, 131669), (353, 57069), (373, 54009), (1059, 19023), (1119, 18003), (3177, 6341), (3357, 6001)]