20712318

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27671682

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 83, 114, 166, 199, 209, 249, 398, 418, 498, 597, 627, 913, 1194, 1254, 1577, 1826, 2189, 2739, 3154, 3781, 4378, 4731, 5478, 6567, 7562, 9462, 11343, 13134, 16517, 17347, 22686, 33034, 34694, 41591, 49551, 52041, 83182, 99102, 104082, 124773, 181687, 249546, 313823, 363374, 545061, 627646, 941469, 1090122, 1882938, 3452053, 6904106, 10356159, 20712318]

約数ペア:

[(1, 20712318), (2, 10356159), (3, 6904106), (6, 3452053), (11, 1882938), (19, 1090122), (22, 941469), (33, 627646), (38, 545061), (57, 363374), (66, 313823), (83, 249546), (114, 181687), (166, 124773), (199, 104082), (209, 99102), (249, 83182), (398, 52041), (418, 49551), (498, 41591), (597, 34694), (627, 33034), (913, 22686), (1194, 17347), (1254, 16517), (1577, 13134), (1826, 11343), (2189, 9462), (2739, 7562), (3154, 6567), (3781, 5478), (4378, 4731)]