20808630819

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{786151}}^1$

素因数の和:786347

約数の個数: 24

約数和(自身を含む): 32008964832

約数和(自身を除く): 11200334013

約数列:

[1, 3, 9, 17, 51, 153, 173, 519, 1557, 2941, 8823, 26469, 786151, 2358453, 7075359, 13364567, 40093701, 120281103, 136004123, 408012369, 1224037107, 2312070091, 6936210273, 20808630819]

約数ペア:

[(1, 20808630819), (3, 6936210273), (9, 2312070091), (17, 1224037107), (51, 408012369), (153, 136004123), (173, 120281103), (519, 40093701), (1557, 13364567), (2941, 7075359), (8823, 2358453), (26469, 786151)]