21353760

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4943}}^1$

素因数の和:4967

約数の個数: 96

約数和(自身を含む): 74753280

約数和(自身を除く): 53399520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4943, 9886, 14829, 19772, 24715, 29658, 39544, 44487, 49430, 59316, 74145, 79088, 88974, 98860, 118632, 133461, 148290, 158176, 177948, 197720, 222435, 237264, 266922, 296580, 355896, 395440, 444870, 474528, 533844, 593160, 667305, 711792, 790880, 889740, 1067688, 1186320, 1334610, 1423584, 1779480, 2135376, 2372640, 2669220, 3558960, 4270752, 5338440, 7117920, 10676880, 21353760]

約数ペア:

[(1, 21353760), (2, 10676880), (3, 7117920), (4, 5338440), (5, 4270752), (6, 3558960), (8, 2669220), (9, 2372640), (10, 2135376), (12, 1779480), (15, 1423584), (16, 1334610), (18, 1186320), (20, 1067688), (24, 889740), (27, 790880), (30, 711792), (32, 667305), (36, 593160), (40, 533844), (45, 474528), (48, 444870), (54, 395440), (60, 355896), (72, 296580), (80, 266922), (90, 237264), (96, 222435), (108, 197720), (120, 177948), (135, 158176), (144, 148290), (160, 133461), (180, 118632), (216, 98860), (240, 88974), (270, 79088), (288, 74145), (360, 59316), (432, 49430), (480, 44487), (540, 39544), (720, 29658), (864, 24715), (1080, 19772), (1440, 14829), (2160, 9886), (4320, 4943)]