20881672

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1327}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 44939520

約数和(自身を除く): 24057848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1327, 1967, 2248, 2654, 3934, 5308, 7868, 9289, 10616, 15736, 18578, 37156, 74312, 372887, 745774, 1491548, 2610209, 2983096, 5220418, 10440836, 20881672]

約数ペア:

[(1, 20881672), (2, 10440836), (4, 5220418), (7, 2983096), (8, 2610209), (14, 1491548), (28, 745774), (56, 372887), (281, 74312), (562, 37156), (1124, 18578), (1327, 15736), (1967, 10616), (2248, 9289), (2654, 7868), (3934, 5308)]