21145464

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^2$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 60292440

約数和(自身を除く): 39146976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 113, 138, 184, 207, 226, 276, 339, 414, 452, 552, 678, 828, 904, 1017, 1356, 1656, 2034, 2599, 2712, 4068, 5198, 7797, 8136, 10396, 12769, 15594, 20792, 23391, 25538, 31188, 38307, 46782, 51076, 62376, 76614, 93564, 102152, 114921, 153228, 187128, 229842, 293687, 306456, 459684, 587374, 881061, 919368, 1174748, 1762122, 2349496, 2643183, 3524244, 5286366, 7048488, 10572732, 21145464]

約数ペア:

[(1, 21145464), (2, 10572732), (3, 7048488), (4, 5286366), (6, 3524244), (8, 2643183), (9, 2349496), (12, 1762122), (18, 1174748), (23, 919368), (24, 881061), (36, 587374), (46, 459684), (69, 306456), (72, 293687), (92, 229842), (113, 187128), (138, 153228), (184, 114921), (207, 102152), (226, 93564), (276, 76614), (339, 62376), (414, 51076), (452, 46782), (552, 38307), (678, 31188), (828, 25538), (904, 23391), (1017, 20792), (1356, 15594), (1656, 12769), (2034, 10396), (2599, 8136), (2712, 7797), (4068, 5198)]