21591276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6947}}^1$

素因数の和:6998

約数の個数: 48

約数和(自身を含む): 59141376

約数和(自身を除く): 37550100

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 777, 1036, 1554, 3108, 6947, 13894, 20841, 27788, 41682, 48629, 83364, 97258, 145887, 194516, 257039, 291774, 514078, 583548, 771117, 1028156, 1542234, 1799273, 3084468, 3598546, 5397819, 7197092, 10795638, 21591276]

約数ペア:

[(1, 21591276), (2, 10795638), (3, 7197092), (4, 5397819), (6, 3598546), (7, 3084468), (12, 1799273), (14, 1542234), (21, 1028156), (28, 771117), (37, 583548), (42, 514078), (74, 291774), (84, 257039), (111, 194516), (148, 145887), (222, 97258), (259, 83364), (444, 48629), (518, 41682), (777, 27788), (1036, 20841), (1554, 13894), (3108, 6947)]