21997264

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{4337}}^1$

素因数の和:4662

約数の個数: 20

約数和(自身を含む): 42764004

約数和(自身を除く): 20766740

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 4337, 5072, 8674, 17348, 34696, 69392, 1374829, 2749658, 5499316, 10998632, 21997264]

約数ペア:

[(1, 21997264), (2, 10998632), (4, 5499316), (8, 2749658), (16, 1374829), (317, 69392), (634, 34696), (1268, 17348), (2536, 8674), (4337, 5072)]