21551310

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1979}}^1$

素因数の和:2014

約数の個数: 72

約数和(自身を含む): 61621560

約数和(自身を除く): 40070250

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 1979, 2178, 3630, 3958, 5445, 5937, 9895, 10890, 11874, 17811, 19790, 21769, 29685, 35622, 43538, 59370, 65307, 89055, 108845, 130614, 178110, 195921, 217690, 239459, 326535, 391842, 478918, 653070, 718377, 979605, 1197295, 1436754, 1959210, 2155131, 2394590, 3591885, 4310262, 7183770, 10775655, 21551310]

約数ペア:

[(1, 21551310), (2, 10775655), (3, 7183770), (5, 4310262), (6, 3591885), (9, 2394590), (10, 2155131), (11, 1959210), (15, 1436754), (18, 1197295), (22, 979605), (30, 718377), (33, 653070), (45, 478918), (55, 391842), (66, 326535), (90, 239459), (99, 217690), (110, 195921), (121, 178110), (165, 130614), (198, 108845), (242, 89055), (330, 65307), (363, 59370), (495, 43538), (605, 35622), (726, 29685), (990, 21769), (1089, 19790), (1210, 17811), (1815, 11874), (1979, 10890), (2178, 9895), (3630, 5937), (3958, 5445)]