21095640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:423

約数の個数: 160

約数和(自身を含む): 75271680

約数和(自身を除く): 54176040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 255, 270, 306, 324, 340, 360, 383, 405, 408, 459, 510, 540, 612, 648, 680, 765, 766, 810, 918, 1020, 1080, 1149, 1224, 1377, 1530, 1532, 1620, 1836, 1915, 2040, 2295, 2298, 2754, 3060, 3064, 3240, 3447, 3672, 3830, 4590, 4596, 5508, 5745, 6120, 6511, 6885, 6894, 7660, 9180, 9192, 10341, 11016, 11490, 13022, 13770, 13788, 15320, 17235, 18360, 19533, 20682, 22980, 26044, 27540, 27576, 31023, 32555, 34470, 39066, 41364, 45960, 51705, 52088, 55080, 58599, 62046, 65110, 68940, 78132, 82728, 97665, 103410, 117198, 124092, 130220, 137880, 155115, 156264, 175797, 195330, 206820, 234396, 248184, 260440, 292995, 310230, 351594, 390660, 413640, 468792, 527391, 585990, 620460, 703188, 781320, 878985, 1054782, 1171980, 1240920, 1406376, 1757970, 2109564, 2343960, 2636955, 3515940, 4219128, 5273910, 7031880, 10547820, 21095640]

約数ペア:

[(1, 21095640), (2, 10547820), (3, 7031880), (4, 5273910), (5, 4219128), (6, 3515940), (8, 2636955), (9, 2343960), (10, 2109564), (12, 1757970), (15, 1406376), (17, 1240920), (18, 1171980), (20, 1054782), (24, 878985), (27, 781320), (30, 703188), (34, 620460), (36, 585990), (40, 527391), (45, 468792), (51, 413640), (54, 390660), (60, 351594), (68, 310230), (72, 292995), (81, 260440), (85, 248184), (90, 234396), (102, 206820), (108, 195330), (120, 175797), (135, 156264), (136, 155115), (153, 137880), (162, 130220), (170, 124092), (180, 117198), (204, 103410), (216, 97665), (255, 82728), (270, 78132), (306, 68940), (324, 65110), (340, 62046), (360, 58599), (383, 55080), (405, 52088), (408, 51705), (459, 45960), (510, 41364), (540, 39066), (612, 34470), (648, 32555), (680, 31023), (765, 27576), (766, 27540), (810, 26044), (918, 22980), (1020, 20682), (1080, 19533), (1149, 18360), (1224, 17235), (1377, 15320), (1530, 13788), (1532, 13770), (1620, 13022), (1836, 11490), (1915, 11016), (2040, 10341), (2295, 9192), (2298, 9180), (2754, 7660), (3060, 6894), (3064, 6885), (3240, 6511), (3447, 6120), (3672, 5745), (3830, 5508), (4590, 4596)]