21426120

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:429

約数の個数: 160

約数和(自身を含む): 76447800

約数和(自身を除く): 55021680

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, 389, 405, 408, 459, 510, 540, 612, 648, 680, 765, 778, 810, 918, 1020, 1080, 1167, 1224, 1377, 1530, 1556, 1620, 1836, 1945, 2040, 2295, 2334, 2754, 3060, 3112, 3240, 3501, 3672, 3890, 4590, 4668, 5508, 5835, 6120, 6613, 6885, 7002, 7780, 9180, 9336, 10503, 11016, 11670, 13226, 13770, 14004, 15560, 17505, 18360, 19839, 21006, 23340, 26452, 27540, 28008, 31509, 33065, 35010, 39678, 42012, 46680, 52515, 52904, 55080, 59517, 63018, 66130, 70020, 79356, 84024, 99195, 105030, 119034, 126036, 132260, 140040, 157545, 158712, 178551, 198390, 210060, 238068, 252072, 264520, 297585, 315090, 357102, 396780, 420120, 476136, 535653, 595170, 630180, 714204, 793560, 892755, 1071306, 1190340, 1260360, 1428408, 1785510, 2142612, 2380680, 2678265, 3571020, 4285224, 5356530, 7142040, 10713060, 21426120]

約数ペア:

[(1, 21426120), (2, 10713060), (3, 7142040), (4, 5356530), (5, 4285224), (6, 3571020), (8, 2678265), (9, 2380680), (10, 2142612), (12, 1785510), (15, 1428408), (17, 1260360), (18, 1190340), (20, 1071306), (24, 892755), (27, 793560), (30, 714204), (34, 630180), (36, 595170), (40, 535653), (45, 476136), (51, 420120), (54, 396780), (60, 357102), (68, 315090), (72, 297585), (81, 264520), (85, 252072), (90, 238068), (102, 210060), (108, 198390), (120, 178551), (135, 158712), (136, 157545), (153, 140040), (162, 132260), (170, 126036), (180, 119034), (204, 105030), (216, 99195), (255, 84024), (270, 79356), (306, 70020), (324, 66130), (340, 63018), (360, 59517), (389, 55080), (405, 52904), (408, 52515), (459, 46680), (510, 42012), (540, 39678), (612, 35010), (648, 33065), (680, 31509), (765, 28008), (778, 27540), (810, 26452), (918, 23340), (1020, 21006), (1080, 19839), (1167, 18360), (1224, 17505), (1377, 15560), (1530, 14004), (1556, 13770), (1620, 13226), (1836, 11670), (1945, 11016), (2040, 10503), (2295, 9336), (2334, 9180), (2754, 7780), (3060, 7002), (3112, 6885), (3240, 6613), (3501, 6120), (3672, 5835), (3890, 5508), (4590, 4668)]