19948556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1319}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 36960000

約数和(自身を除く): 17011444

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 1319, 2638, 3781, 5276, 7562, 15124, 25061, 50122, 100244, 262481, 524962, 1049924, 4987139, 9974278, 19948556]

約数ペア:

[(1, 19948556), (2, 9974278), (4, 4987139), (19, 1049924), (38, 524962), (76, 262481), (199, 100244), (398, 50122), (796, 25061), (1319, 15124), (2638, 7562), (3781, 5276)]