20992788

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{2269}}^1$

素因数の和:2536

約数の個数: 36

約数和(自身を含む): 53295060

約数和(自身を除く): 32302272

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2269, 2313, 3084, 4538, 4626, 6807, 9076, 9252, 13614, 20421, 27228, 40842, 81684, 583133, 1166266, 1749399, 2332532, 3498798, 5248197, 6997596, 10496394, 20992788]

約数ペア:

[(1, 20992788), (2, 10496394), (3, 6997596), (4, 5248197), (6, 3498798), (9, 2332532), (12, 1749399), (18, 1166266), (36, 583133), (257, 81684), (514, 40842), (771, 27228), (1028, 20421), (1542, 13614), (2269, 9252), (2313, 9076), (3084, 6807), (4538, 4626)]