20681794

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 36723456

約数和(自身を除く): 16041662

約数列:

[1, 2, 7, 14, 41, 82, 137, 263, 274, 287, 526, 574, 959, 1841, 1918, 3682, 5617, 10783, 11234, 21566, 36031, 39319, 72062, 75481, 78638, 150962, 252217, 504434, 1477271, 2954542, 10340897, 20681794]

約数ペア:

[(1, 20681794), (2, 10340897), (7, 2954542), (14, 1477271), (41, 504434), (82, 252217), (137, 150962), (263, 78638), (274, 75481), (287, 72062), (526, 39319), (574, 36031), (959, 21566), (1841, 11234), (1918, 10783), (3682, 5617)]