21190816

素因数分解:

$2^5\times {\mathrm{317}}^1\times {\mathrm{2089}}^1$

素因数の和:2416

約数の個数: 24

約数和(自身を含む): 41871060

約数和(自身を除く): 20680244

約数列:

[1, 2, 4, 8, 16, 32, 317, 634, 1268, 2089, 2536, 4178, 5072, 8356, 10144, 16712, 33424, 66848, 662213, 1324426, 2648852, 5297704, 10595408, 21190816]

約数ペア:

[(1, 21190816), (2, 10595408), (4, 5297704), (8, 2648852), (16, 1324426), (32, 662213), (317, 66848), (634, 33424), (1268, 16712), (2089, 10144), (2536, 8356), (4178, 5072)]