21153440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 66624768

約数和(自身を除く): 45471328

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 32, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 101, 110, 112, 119, 136, 140, 154, 160, 170, 176, 187, 202, 220, 224, 238, 272, 280, 308, 340, 352, 374, 385, 404, 440, 476, 505, 544, 560, 595, 616, 680, 707, 748, 770, 808, 880, 935, 952, 1010, 1111, 1120, 1190, 1232, 1309, 1360, 1414, 1496, 1540, 1616, 1717, 1760, 1870, 1904, 2020, 2222, 2380, 2464, 2618, 2720, 2828, 2992, 3080, 3232, 3434, 3535, 3740, 3808, 4040, 4444, 4760, 5236, 5555, 5656, 5984, 6160, 6545, 6868, 7070, 7480, 7777, 8080, 8585, 8888, 9520, 10472, 11110, 11312, 12019, 12320, 13090, 13736, 14140, 14960, 15554, 16160, 17170, 17776, 18887, 19040, 20944, 22220, 22624, 24038, 26180, 27472, 28280, 29920, 31108, 34340, 35552, 37774, 38885, 41888, 44440, 48076, 52360, 54944, 56560, 60095, 62216, 68680, 75548, 77770, 88880, 94435, 96152, 104720, 113120, 120190, 124432, 132209, 137360, 151096, 155540, 177760, 188870, 192304, 209440, 240380, 248864, 264418, 274720, 302192, 311080, 377740, 384608, 480760, 528836, 604384, 622160, 661045, 755480, 961520, 1057672, 1244320, 1322090, 1510960, 1923040, 2115344, 2644180, 3021920, 4230688, 5288360, 10576720, 21153440]

約数ペア:

[(1, 21153440), (2, 10576720), (4, 5288360), (5, 4230688), (7, 3021920), (8, 2644180), (10, 2115344), (11, 1923040), (14, 1510960), (16, 1322090), (17, 1244320), (20, 1057672), (22, 961520), (28, 755480), (32, 661045), (34, 622160), (35, 604384), (40, 528836), (44, 480760), (55, 384608), (56, 377740), (68, 311080), (70, 302192), (77, 274720), (80, 264418), (85, 248864), (88, 240380), (101, 209440), (110, 192304), (112, 188870), (119, 177760), (136, 155540), (140, 151096), (154, 137360), (160, 132209), (170, 124432), (176, 120190), (187, 113120), (202, 104720), (220, 96152), (224, 94435), (238, 88880), (272, 77770), (280, 75548), (308, 68680), (340, 62216), (352, 60095), (374, 56560), (385, 54944), (404, 52360), (440, 48076), (476, 44440), (505, 41888), (544, 38885), (560, 37774), (595, 35552), (616, 34340), (680, 31108), (707, 29920), (748, 28280), (770, 27472), (808, 26180), (880, 24038), (935, 22624), (952, 22220), (1010, 20944), (1111, 19040), (1120, 18887), (1190, 17776), (1232, 17170), (1309, 16160), (1360, 15554), (1414, 14960), (1496, 14140), (1540, 13736), (1616, 13090), (1717, 12320), (1760, 12019), (1870, 11312), (1904, 11110), (2020, 10472), (2222, 9520), (2380, 8888), (2464, 8585), (2618, 8080), (2720, 7777), (2828, 7480), (2992, 7070), (3080, 6868), (3232, 6545), (3434, 6160), (3535, 5984), (3740, 5656), (3808, 5555), (4040, 5236), (4444, 4760)]