21264660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{743}}^1$

素因数の和:814

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 46231020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 90, 106, 108, 135, 159, 180, 212, 265, 270, 318, 477, 530, 540, 636, 743, 795, 954, 1060, 1431, 1486, 1590, 1908, 2229, 2385, 2862, 2972, 3180, 3715, 4458, 4770, 5724, 6687, 7155, 7430, 8916, 9540, 11145, 13374, 14310, 14860, 20061, 22290, 26748, 28620, 33435, 39379, 40122, 44580, 66870, 78758, 80244, 100305, 118137, 133740, 157516, 196895, 200610, 236274, 354411, 393790, 401220, 472548, 590685, 708822, 787580, 1063233, 1181370, 1417644, 1772055, 2126466, 2362740, 3544110, 4252932, 5316165, 7088220, 10632330, 21264660]

約数ペア:

[(1, 21264660), (2, 10632330), (3, 7088220), (4, 5316165), (5, 4252932), (6, 3544110), (9, 2362740), (10, 2126466), (12, 1772055), (15, 1417644), (18, 1181370), (20, 1063233), (27, 787580), (30, 708822), (36, 590685), (45, 472548), (53, 401220), (54, 393790), (60, 354411), (90, 236274), (106, 200610), (108, 196895), (135, 157516), (159, 133740), (180, 118137), (212, 100305), (265, 80244), (270, 78758), (318, 66870), (477, 44580), (530, 40122), (540, 39379), (636, 33435), (743, 28620), (795, 26748), (954, 22290), (1060, 20061), (1431, 14860), (1486, 14310), (1590, 13374), (1908, 11145), (2229, 9540), (2385, 8916), (2862, 7430), (2972, 7155), (3180, 6687), (3715, 5724), (4458, 4770)]