21054060

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 66232320

約数和(自身を除く): 45178260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 127, 135, 180, 254, 270, 307, 381, 508, 540, 614, 635, 762, 921, 1143, 1228, 1270, 1524, 1535, 1842, 1905, 2286, 2540, 2763, 3070, 3429, 3684, 3810, 4572, 4605, 5526, 5715, 6140, 6858, 7620, 8289, 9210, 11052, 11430, 13716, 13815, 16578, 17145, 18420, 22860, 27630, 33156, 34290, 38989, 41445, 55260, 68580, 77978, 82890, 116967, 155956, 165780, 194945, 233934, 350901, 389890, 467868, 584835, 701802, 779780, 1052703, 1169670, 1403604, 1754505, 2105406, 2339340, 3509010, 4210812, 5263515, 7018020, 10527030, 21054060]

約数ペア:

[(1, 21054060), (2, 10527030), (3, 7018020), (4, 5263515), (5, 4210812), (6, 3509010), (9, 2339340), (10, 2105406), (12, 1754505), (15, 1403604), (18, 1169670), (20, 1052703), (27, 779780), (30, 701802), (36, 584835), (45, 467868), (54, 389890), (60, 350901), (90, 233934), (108, 194945), (127, 165780), (135, 155956), (180, 116967), (254, 82890), (270, 77978), (307, 68580), (381, 55260), (508, 41445), (540, 38989), (614, 34290), (635, 33156), (762, 27630), (921, 22860), (1143, 18420), (1228, 17145), (1270, 16578), (1524, 13815), (1535, 13716), (1842, 11430), (1905, 11052), (2286, 9210), (2540, 8289), (2763, 7620), (3070, 6858), (3429, 6140), (3684, 5715), (3810, 5526), (4572, 4605)]