21097035520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{10937}}^1$

素因数の和:11106

約数の個数: 144

約数和(自身を含む): 55535463648

約数和(自身を除く): 34438428128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 137, 160, 176, 220, 256, 274, 320, 352, 440, 548, 640, 685, 704, 880, 1096, 1280, 1370, 1408, 1507, 1760, 2192, 2740, 2816, 3014, 3520, 4384, 5480, 6028, 7040, 7535, 8768, 10937, 10960, 12056, 14080, 15070, 17536, 21874, 21920, 24112, 30140, 35072, 43748, 43840, 48224, 54685, 60280, 87496, 87680, 96448, 109370, 120307, 120560, 174992, 175360, 192896, 218740, 240614, 241120, 349984, 385792, 437480, 481228, 482240, 601535, 699968, 874960, 962456, 964480, 1203070, 1399936, 1498369, 1749920, 1924912, 1928960, 2406140, 2799872, 2996738, 3499840, 3849824, 4812280, 5993476, 6999680, 7491845, 7699648, 9624560, 11986952, 13999360, 14983690, 15399296, 16482059, 19249120, 23973904, 29967380, 30798592, 32964118, 38498240, 47947808, 59934760, 65928236, 76996480, 82410295, 95895616, 119869520, 131856472, 153992960, 164820590, 191791232, 239739040, 263712944, 329641180, 383582464, 479478080, 527425888, 659282360, 958956160, 1054851776, 1318564720, 1917912320, 2109703552, 2637129440, 4219407104, 5274258880, 10548517760, 21097035520]

約数ペア:

[(1, 21097035520), (2, 10548517760), (4, 5274258880), (5, 4219407104), (8, 2637129440), (10, 2109703552), (11, 1917912320), (16, 1318564720), (20, 1054851776), (22, 958956160), (32, 659282360), (40, 527425888), (44, 479478080), (55, 383582464), (64, 329641180), (80, 263712944), (88, 239739040), (110, 191791232), (128, 164820590), (137, 153992960), (160, 131856472), (176, 119869520), (220, 95895616), (256, 82410295), (274, 76996480), (320, 65928236), (352, 59934760), (440, 47947808), (548, 38498240), (640, 32964118), (685, 30798592), (704, 29967380), (880, 23973904), (1096, 19249120), (1280, 16482059), (1370, 15399296), (1408, 14983690), (1507, 13999360), (1760, 11986952), (2192, 9624560), (2740, 7699648), (2816, 7491845), (3014, 6999680), (3520, 5993476), (4384, 4812280), (5480, 3849824), (6028, 3499840), (7040, 2996738), (7535, 2799872), (8768, 2406140), (10937, 1928960), (10960, 1924912), (12056, 1749920), (14080, 1498369), (15070, 1399936), (17536, 1203070), (21874, 964480), (21920, 962456), (24112, 874960), (30140, 699968), (35072, 601535), (43748, 482240), (43840, 481228), (48224, 437480), (54685, 385792), (60280, 349984), (87496, 241120), (87680, 240614), (96448, 218740), (109370, 192896), (120307, 175360), (120560, 174992)]