20916492

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 51744000

約数和(自身を除く): 30827508

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 199, 228, 398, 461, 597, 796, 922, 1194, 1383, 1844, 2388, 2766, 3781, 5532, 7562, 8759, 11343, 15124, 17518, 22686, 26277, 35036, 45372, 52554, 91739, 105108, 183478, 275217, 366956, 550434, 1100868, 1743041, 3486082, 5229123, 6972164, 10458246, 20916492]

約数ペア:

[(1, 20916492), (2, 10458246), (3, 6972164), (4, 5229123), (6, 3486082), (12, 1743041), (19, 1100868), (38, 550434), (57, 366956), (76, 275217), (114, 183478), (199, 105108), (228, 91739), (398, 52554), (461, 45372), (597, 35036), (796, 26277), (922, 22686), (1194, 17518), (1383, 15124), (1844, 11343), (2388, 8759), (2766, 7562), (3781, 5532)]