21606720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 112

約数和(自身を含む): 69787008

約数和(自身を除く): 48180288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 317, 320, 355, 426, 480, 568, 634, 710, 852, 951, 960, 1065, 1136, 1268, 1420, 1585, 1704, 1902, 2130, 2272, 2536, 2840, 3170, 3408, 3804, 4260, 4544, 4755, 5072, 5680, 6340, 6816, 7608, 8520, 9510, 10144, 11360, 12680, 13632, 15216, 17040, 19020, 20288, 22507, 22720, 25360, 30432, 34080, 38040, 45014, 50720, 60864, 67521, 68160, 76080, 90028, 101440, 112535, 135042, 152160, 180056, 225070, 270084, 304320, 337605, 360112, 450140, 540168, 675210, 720224, 900280, 1080336, 1350420, 1440448, 1800560, 2160672, 2700840, 3601120, 4321344, 5401680, 7202240, 10803360, 21606720]

約数ペア:

[(1, 21606720), (2, 10803360), (3, 7202240), (4, 5401680), (5, 4321344), (6, 3601120), (8, 2700840), (10, 2160672), (12, 1800560), (15, 1440448), (16, 1350420), (20, 1080336), (24, 900280), (30, 720224), (32, 675210), (40, 540168), (48, 450140), (60, 360112), (64, 337605), (71, 304320), (80, 270084), (96, 225070), (120, 180056), (142, 152160), (160, 135042), (192, 112535), (213, 101440), (240, 90028), (284, 76080), (317, 68160), (320, 67521), (355, 60864), (426, 50720), (480, 45014), (568, 38040), (634, 34080), (710, 30432), (852, 25360), (951, 22720), (960, 22507), (1065, 20288), (1136, 19020), (1268, 17040), (1420, 15216), (1585, 13632), (1704, 12680), (1902, 11360), (2130, 10144), (2272, 9510), (2536, 8520), (2840, 7608), (3170, 6816), (3408, 6340), (3804, 5680), (4260, 5072), (4544, 4755)]