21800808

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 62548200

約数和(自身を除く): 40747392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 53, 58, 72, 87, 106, 116, 159, 174, 197, 212, 232, 261, 318, 348, 394, 424, 477, 522, 591, 636, 696, 788, 954, 1044, 1182, 1272, 1537, 1576, 1773, 1908, 2088, 2364, 3074, 3546, 3816, 4611, 4728, 5713, 6148, 7092, 9222, 10441, 11426, 12296, 13833, 14184, 17139, 18444, 20882, 22852, 27666, 31323, 34278, 36888, 41764, 45704, 51417, 55332, 62646, 68556, 83528, 93969, 102834, 110664, 125292, 137112, 187938, 205668, 250584, 302789, 375876, 411336, 605578, 751752, 908367, 1211156, 1816734, 2422312, 2725101, 3633468, 5450202, 7266936, 10900404, 21800808]

約数ペア:

[(1, 21800808), (2, 10900404), (3, 7266936), (4, 5450202), (6, 3633468), (8, 2725101), (9, 2422312), (12, 1816734), (18, 1211156), (24, 908367), (29, 751752), (36, 605578), (53, 411336), (58, 375876), (72, 302789), (87, 250584), (106, 205668), (116, 187938), (159, 137112), (174, 125292), (197, 110664), (212, 102834), (232, 93969), (261, 83528), (318, 68556), (348, 62646), (394, 55332), (424, 51417), (477, 45704), (522, 41764), (591, 36888), (636, 34278), (696, 31323), (788, 27666), (954, 22852), (1044, 20882), (1182, 18444), (1272, 17139), (1537, 14184), (1576, 13833), (1773, 12296), (1908, 11426), (2088, 10441), (2364, 9222), (3074, 7092), (3546, 6148), (3816, 5713), (4611, 4728)]