821168

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{3019}}^1$

素因数の和:3044

約数の個数: 20

約数和(自身を含む): 1685160

約数和(自身を除く): 863992

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 3019, 6038, 12076, 24152, 48304, 51323, 102646, 205292, 410584, 821168]

約数ペア:

[(1, 821168), (2, 410584), (4, 205292), (8, 102646), (16, 51323), (17, 48304), (34, 24152), (68, 12076), (136, 6038), (272, 3019)]