21680584

素因数分解:

$2^3\times {\mathrm{613}}^1\times {\mathrm{4421}}^1$

素因数の和:5040

約数の個数: 16

約数和(自身を含む): 40726620

約数和(自身を除く): 19046036

約数列:

[1, 2, 4, 8, 613, 1226, 2452, 4421, 4904, 8842, 17684, 35368, 2710073, 5420146, 10840292, 21680584]

約数ペア:

[(1, 21680584), (2, 10840292), (4, 5420146), (8, 2710073), (613, 35368), (1226, 17684), (2452, 8842), (4421, 4904)]