17016820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 37433088

約数和(自身を除く): 20416268

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 421, 430, 470, 842, 860, 940, 1684, 2021, 2105, 4042, 4210, 8084, 8420, 10105, 18103, 19787, 20210, 36206, 39574, 40420, 72412, 79148, 90515, 98935, 181030, 197870, 362060, 395740, 850841, 1701682, 3403364, 4254205, 8508410, 17016820]

約数ペア:

[(1, 17016820), (2, 8508410), (4, 4254205), (5, 3403364), (10, 1701682), (20, 850841), (43, 395740), (47, 362060), (86, 197870), (94, 181030), (172, 98935), (188, 90515), (215, 79148), (235, 72412), (421, 40420), (430, 39574), (470, 36206), (842, 20210), (860, 19787), (940, 18103), (1684, 10105), (2021, 8420), (2105, 8084), (4042, 4210)]