21144420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50403420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 59, 60, 66, 90, 99, 110, 118, 132, 165, 177, 180, 181, 198, 220, 236, 295, 330, 354, 362, 396, 495, 531, 543, 590, 649, 660, 708, 724, 885, 905, 990, 1062, 1086, 1180, 1298, 1629, 1770, 1810, 1947, 1980, 1991, 2124, 2172, 2596, 2655, 2715, 3245, 3258, 3540, 3620, 3894, 3982, 5310, 5430, 5841, 5973, 6490, 6516, 7788, 7964, 8145, 9735, 9955, 10620, 10679, 10860, 11682, 11946, 12980, 16290, 17919, 19470, 19910, 21358, 23364, 23892, 29205, 29865, 32037, 32580, 35838, 38940, 39820, 42716, 53395, 58410, 59730, 64074, 71676, 89595, 96111, 106790, 116820, 117469, 119460, 128148, 160185, 179190, 192222, 213580, 234938, 320370, 352407, 358380, 384444, 469876, 480555, 587345, 640740, 704814, 961110, 1057221, 1174690, 1409628, 1762035, 1922220, 2114442, 2349380, 3524070, 4228884, 5286105, 7048140, 10572210, 21144420]

約数ペア:

[(1, 21144420), (2, 10572210), (3, 7048140), (4, 5286105), (5, 4228884), (6, 3524070), (9, 2349380), (10, 2114442), (11, 1922220), (12, 1762035), (15, 1409628), (18, 1174690), (20, 1057221), (22, 961110), (30, 704814), (33, 640740), (36, 587345), (44, 480555), (45, 469876), (55, 384444), (59, 358380), (60, 352407), (66, 320370), (90, 234938), (99, 213580), (110, 192222), (118, 179190), (132, 160185), (165, 128148), (177, 119460), (180, 117469), (181, 116820), (198, 106790), (220, 96111), (236, 89595), (295, 71676), (330, 64074), (354, 59730), (362, 58410), (396, 53395), (495, 42716), (531, 39820), (543, 38940), (590, 35838), (649, 32580), (660, 32037), (708, 29865), (724, 29205), (885, 23892), (905, 23364), (990, 21358), (1062, 19910), (1086, 19470), (1180, 17919), (1298, 16290), (1629, 12980), (1770, 11946), (1810, 11682), (1947, 10860), (1980, 10679), (1991, 10620), (2124, 9955), (2172, 9735), (2596, 8145), (2655, 7964), (2715, 7788), (3245, 6516), (3258, 6490), (3540, 5973), (3620, 5841), (3894, 5430), (3982, 5310)]