21109680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:388

約数の個数: 160

約数和(自身を含む): 75441600

約数和(自身を除く): 54331920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 108, 116, 120, 135, 144, 145, 174, 180, 216, 232, 240, 261, 270, 290, 337, 348, 360, 432, 435, 464, 522, 540, 580, 674, 696, 720, 783, 870, 1011, 1044, 1080, 1160, 1305, 1348, 1392, 1566, 1685, 1740, 2022, 2088, 2160, 2320, 2610, 2696, 3033, 3132, 3370, 3480, 3915, 4044, 4176, 5055, 5220, 5392, 6066, 6264, 6740, 6960, 7830, 8088, 9099, 9773, 10110, 10440, 12132, 12528, 13480, 15165, 15660, 16176, 18198, 19546, 20220, 20880, 24264, 26960, 29319, 30330, 31320, 36396, 39092, 40440, 45495, 48528, 48865, 58638, 60660, 62640, 72792, 78184, 80880, 87957, 90990, 97730, 117276, 121320, 145584, 146595, 156368, 175914, 181980, 195460, 234552, 242640, 263871, 293190, 351828, 363960, 390920, 439785, 469104, 527742, 586380, 703656, 727920, 781840, 879570, 1055484, 1172760, 1319355, 1407312, 1759140, 2110968, 2345520, 2638710, 3518280, 4221936, 5277420, 7036560, 10554840, 21109680]

約数ペア:

[(1, 21109680), (2, 10554840), (3, 7036560), (4, 5277420), (5, 4221936), (6, 3518280), (8, 2638710), (9, 2345520), (10, 2110968), (12, 1759140), (15, 1407312), (16, 1319355), (18, 1172760), (20, 1055484), (24, 879570), (27, 781840), (29, 727920), (30, 703656), (36, 586380), (40, 527742), (45, 469104), (48, 439785), (54, 390920), (58, 363960), (60, 351828), (72, 293190), (80, 263871), (87, 242640), (90, 234552), (108, 195460), (116, 181980), (120, 175914), (135, 156368), (144, 146595), (145, 145584), (174, 121320), (180, 117276), (216, 97730), (232, 90990), (240, 87957), (261, 80880), (270, 78184), (290, 72792), (337, 62640), (348, 60660), (360, 58638), (432, 48865), (435, 48528), (464, 45495), (522, 40440), (540, 39092), (580, 36396), (674, 31320), (696, 30330), (720, 29319), (783, 26960), (870, 24264), (1011, 20880), (1044, 20220), (1080, 19546), (1160, 18198), (1305, 16176), (1348, 15660), (1392, 15165), (1566, 13480), (1685, 12528), (1740, 12132), (2022, 10440), (2088, 10110), (2160, 9773), (2320, 9099), (2610, 8088), (2696, 7830), (3033, 6960), (3132, 6740), (3370, 6264), (3480, 6066), (3915, 5392), (4044, 5220), (4176, 5055)]