20992756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4229}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 39440520

約数和(自身を除く): 18447764

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4229, 4964, 8458, 16916, 71893, 143786, 287572, 308717, 617434, 1234868, 5248189, 10496378, 20992756]

約数ペア:

[(1, 20992756), (2, 10496378), (4, 5248189), (17, 1234868), (34, 617434), (68, 308717), (73, 287572), (146, 143786), (292, 71893), (1241, 16916), (2482, 8458), (4229, 4964)]