21786240

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1621}}^1$

素因数の和:1650

約数の個数: 128

約数和(自身を含む): 79413120

約数和(自身を除く): 57626880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1621, 1680, 1920, 2240, 2688, 3242, 3360, 4480, 4863, 6484, 6720, 8105, 9726, 11347, 12968, 13440, 16210, 19452, 22694, 24315, 25936, 32420, 34041, 38904, 45388, 48630, 51872, 56735, 64840, 68082, 77808, 90776, 97260, 103744, 113470, 129680, 136164, 155616, 170205, 181552, 194520, 207488, 226940, 259360, 272328, 311232, 340410, 363104, 389040, 453880, 518720, 544656, 622464, 680820, 726208, 778080, 907760, 1037440, 1089312, 1361640, 1452416, 1556160, 1815520, 2178624, 2723280, 3112320, 3631040, 4357248, 5446560, 7262080, 10893120, 21786240]

約数ペア:

[(1, 21786240), (2, 10893120), (3, 7262080), (4, 5446560), (5, 4357248), (6, 3631040), (7, 3112320), (8, 2723280), (10, 2178624), (12, 1815520), (14, 1556160), (15, 1452416), (16, 1361640), (20, 1089312), (21, 1037440), (24, 907760), (28, 778080), (30, 726208), (32, 680820), (35, 622464), (40, 544656), (42, 518720), (48, 453880), (56, 389040), (60, 363104), (64, 340410), (70, 311232), (80, 272328), (84, 259360), (96, 226940), (105, 207488), (112, 194520), (120, 181552), (128, 170205), (140, 155616), (160, 136164), (168, 129680), (192, 113470), (210, 103744), (224, 97260), (240, 90776), (280, 77808), (320, 68082), (336, 64840), (384, 56735), (420, 51872), (448, 48630), (480, 45388), (560, 38904), (640, 34041), (672, 32420), (840, 25936), (896, 24315), (960, 22694), (1120, 19452), (1344, 16210), (1621, 13440), (1680, 12968), (1920, 11347), (2240, 9726), (2688, 8105), (3242, 6720), (3360, 6484), (4480, 4863)]