21513206

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 19855114

約数列:

[1, 2, 11, 13, 19, 22, 26, 37, 38, 74, 107, 143, 209, 214, 247, 286, 407, 418, 481, 494, 703, 814, 962, 1177, 1391, 1406, 2033, 2354, 2717, 2782, 3959, 4066, 5291, 5434, 7733, 7918, 9139, 10582, 15301, 15466, 18278, 22363, 26429, 30602, 43549, 44726, 51467, 52858, 75221, 87098, 100529, 102934, 150442, 201058, 290719, 566137, 581438, 827431, 977873, 1132274, 1654862, 1955746, 10756603, 21513206]

約数ペア:

[(1, 21513206), (2, 10756603), (11, 1955746), (13, 1654862), (19, 1132274), (22, 977873), (26, 827431), (37, 581438), (38, 566137), (74, 290719), (107, 201058), (143, 150442), (209, 102934), (214, 100529), (247, 87098), (286, 75221), (407, 52858), (418, 51467), (481, 44726), (494, 43549), (703, 30602), (814, 26429), (962, 22363), (1177, 18278), (1391, 15466), (1406, 15301), (2033, 10582), (2354, 9139), (2717, 7918), (2782, 7733), (3959, 5434), (4066, 5291)]