20011788

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1767

約数の個数: 72

約数和(自身を含む): 56412720

約数和(自身を除く): 36400932

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 51, 57, 68, 76, 102, 114, 153, 171, 204, 228, 306, 323, 342, 612, 646, 684, 969, 1292, 1721, 1938, 2907, 3442, 3876, 5163, 5814, 6884, 10326, 11628, 15489, 20652, 29257, 30978, 32699, 58514, 61956, 65398, 87771, 98097, 117028, 130796, 175542, 196194, 263313, 294291, 351084, 392388, 526626, 555883, 588582, 1053252, 1111766, 1177164, 1667649, 2223532, 3335298, 5002947, 6670596, 10005894, 20011788]

約数ペア:

[(1, 20011788), (2, 10005894), (3, 6670596), (4, 5002947), (6, 3335298), (9, 2223532), (12, 1667649), (17, 1177164), (18, 1111766), (19, 1053252), (34, 588582), (36, 555883), (38, 526626), (51, 392388), (57, 351084), (68, 294291), (76, 263313), (102, 196194), (114, 175542), (153, 130796), (171, 117028), (204, 98097), (228, 87771), (306, 65398), (323, 61956), (342, 58514), (612, 32699), (646, 30978), (684, 29257), (969, 20652), (1292, 15489), (1721, 11628), (1938, 10326), (2907, 6884), (3442, 5814), (3876, 5163)]