21951840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 54252960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 29, 30, 32, 38, 40, 48, 57, 58, 60, 76, 80, 83, 87, 95, 96, 114, 116, 120, 145, 152, 160, 166, 174, 190, 228, 232, 240, 249, 285, 290, 304, 332, 348, 380, 415, 435, 456, 464, 480, 498, 551, 570, 580, 608, 664, 696, 760, 830, 870, 912, 928, 996, 1102, 1140, 1160, 1245, 1328, 1392, 1520, 1577, 1653, 1660, 1740, 1824, 1992, 2204, 2280, 2320, 2407, 2490, 2656, 2755, 2784, 3040, 3154, 3306, 3320, 3480, 3984, 4408, 4560, 4640, 4731, 4814, 4980, 5510, 6308, 6612, 6640, 6960, 7221, 7885, 7968, 8265, 8816, 9120, 9462, 9628, 9960, 11020, 12035, 12616, 13224, 13280, 13920, 14442, 15770, 16530, 17632, 18924, 19256, 19920, 22040, 23655, 24070, 25232, 26448, 28884, 31540, 33060, 36105, 37848, 38512, 39840, 44080, 45733, 47310, 48140, 50464, 52896, 57768, 63080, 66120, 72210, 75696, 77024, 88160, 91466, 94620, 96280, 115536, 126160, 132240, 137199, 144420, 151392, 182932, 189240, 192560, 228665, 231072, 252320, 264480, 274398, 288840, 365864, 378480, 385120, 457330, 548796, 577680, 685995, 731728, 756960, 914660, 1097592, 1155360, 1371990, 1463456, 1829320, 2195184, 2743980, 3658640, 4390368, 5487960, 7317280, 10975920, 21951840]

約数ペア:

[(1, 21951840), (2, 10975920), (3, 7317280), (4, 5487960), (5, 4390368), (6, 3658640), (8, 2743980), (10, 2195184), (12, 1829320), (15, 1463456), (16, 1371990), (19, 1155360), (20, 1097592), (24, 914660), (29, 756960), (30, 731728), (32, 685995), (38, 577680), (40, 548796), (48, 457330), (57, 385120), (58, 378480), (60, 365864), (76, 288840), (80, 274398), (83, 264480), (87, 252320), (95, 231072), (96, 228665), (114, 192560), (116, 189240), (120, 182932), (145, 151392), (152, 144420), (160, 137199), (166, 132240), (174, 126160), (190, 115536), (228, 96280), (232, 94620), (240, 91466), (249, 88160), (285, 77024), (290, 75696), (304, 72210), (332, 66120), (348, 63080), (380, 57768), (415, 52896), (435, 50464), (456, 48140), (464, 47310), (480, 45733), (498, 44080), (551, 39840), (570, 38512), (580, 37848), (608, 36105), (664, 33060), (696, 31540), (760, 28884), (830, 26448), (870, 25232), (912, 24070), (928, 23655), (996, 22040), (1102, 19920), (1140, 19256), (1160, 18924), (1245, 17632), (1328, 16530), (1392, 15770), (1520, 14442), (1577, 13920), (1653, 13280), (1660, 13224), (1740, 12616), (1824, 12035), (1992, 11020), (2204, 9960), (2280, 9628), (2320, 9462), (2407, 9120), (2490, 8816), (2656, 8265), (2755, 7968), (2784, 7885), (3040, 7221), (3154, 6960), (3306, 6640), (3320, 6612), (3480, 6308), (3984, 5510), (4408, 4980), (4560, 4814), (4640, 4731)]