21887316

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2909}}^1$

素因数の和:2949

約数の個数: 72

約数和(自身を含む): 63554400

約数和(自身を除く): 41667084

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 171, 198, 209, 228, 342, 396, 418, 627, 684, 836, 1254, 1881, 2508, 2909, 3762, 5818, 7524, 8727, 11636, 17454, 26181, 31999, 34908, 52362, 55271, 63998, 95997, 104724, 110542, 127996, 165813, 191994, 221084, 287991, 331626, 383988, 497439, 575982, 607981, 663252, 994878, 1151964, 1215962, 1823943, 1989756, 2431924, 3647886, 5471829, 7295772, 10943658, 21887316]

約数ペア:

[(1, 21887316), (2, 10943658), (3, 7295772), (4, 5471829), (6, 3647886), (9, 2431924), (11, 1989756), (12, 1823943), (18, 1215962), (19, 1151964), (22, 994878), (33, 663252), (36, 607981), (38, 575982), (44, 497439), (57, 383988), (66, 331626), (76, 287991), (99, 221084), (114, 191994), (132, 165813), (171, 127996), (198, 110542), (209, 104724), (228, 95997), (342, 63998), (396, 55271), (418, 52362), (627, 34908), (684, 31999), (836, 26181), (1254, 17454), (1881, 11636), (2508, 8727), (2909, 7524), (3762, 5818)]