21302950

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{2141}}^1$

素因数の和:2352

約数の個数: 24

約数和(自身を含む): 39841200

約数和(自身を除く): 18538250

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 2141, 4282, 4975, 9950, 10705, 21410, 53525, 107050, 426059, 852118, 2130295, 4260590, 10651475, 21302950]

約数ペア:

[(1, 21302950), (2, 10651475), (5, 4260590), (10, 2130295), (25, 852118), (50, 426059), (199, 107050), (398, 53525), (995, 21410), (1990, 10705), (2141, 9950), (4282, 4975)]