20828108

素因数分解:

$2^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2423}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 41809152

約数和(自身を除く): 20981044

約数列:

[1, 2, 4, 7, 14, 28, 307, 614, 1228, 2149, 2423, 4298, 4846, 8596, 9692, 16961, 33922, 67844, 743861, 1487722, 2975444, 5207027, 10414054, 20828108]

約数ペア:

[(1, 20828108), (2, 10414054), (4, 5207027), (7, 2975444), (14, 1487722), (28, 743861), (307, 67844), (614, 33922), (1228, 16961), (2149, 9692), (2423, 8596), (4298, 4846)]