20564588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2447}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 39481344

約数和(自身を除く): 18916756

約数列:

[1, 2, 4, 11, 22, 44, 191, 382, 764, 2101, 2447, 4202, 4894, 8404, 9788, 26917, 53834, 107668, 467377, 934754, 1869508, 5141147, 10282294, 20564588]

約数ペア:

[(1, 20564588), (2, 10282294), (4, 5141147), (11, 1869508), (22, 934754), (44, 467377), (191, 107668), (382, 53834), (764, 26917), (2101, 9788), (2447, 8404), (4202, 4894)]