19797316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 48384000

約数和(自身を除く): 28586684

約数列:

[1, 2, 4, 7, 11, 14, 17, 19, 22, 28, 34, 38, 44, 68, 76, 77, 119, 133, 154, 187, 199, 209, 238, 266, 308, 323, 374, 398, 418, 476, 532, 646, 748, 796, 836, 1292, 1309, 1393, 1463, 2189, 2261, 2618, 2786, 2926, 3383, 3553, 3781, 4378, 4522, 5236, 5572, 5852, 6766, 7106, 7562, 8756, 9044, 13532, 14212, 15124, 15323, 23681, 24871, 26467, 30646, 37213, 41591, 47362, 49742, 52934, 61292, 64277, 74426, 83182, 94724, 99484, 105868, 128554, 148852, 166364, 257108, 260491, 291137, 449939, 520982, 582274, 707047, 899878, 1041964, 1164548, 1414094, 1799756, 2828188, 4949329, 9898658, 19797316]

約数ペア:

[(1, 19797316), (2, 9898658), (4, 4949329), (7, 2828188), (11, 1799756), (14, 1414094), (17, 1164548), (19, 1041964), (22, 899878), (28, 707047), (34, 582274), (38, 520982), (44, 449939), (68, 291137), (76, 260491), (77, 257108), (119, 166364), (133, 148852), (154, 128554), (187, 105868), (199, 99484), (209, 94724), (238, 83182), (266, 74426), (308, 64277), (323, 61292), (374, 52934), (398, 49742), (418, 47362), (476, 41591), (532, 37213), (646, 30646), (748, 26467), (796, 24871), (836, 23681), (1292, 15323), (1309, 15124), (1393, 14212), (1463, 13532), (2189, 9044), (2261, 8756), (2618, 7562), (2786, 7106), (2926, 6766), (3383, 5852), (3553, 5572), (3781, 5236), (4378, 4522)]