21319683

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 17249277

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 61, 77, 89, 119, 183, 187, 231, 267, 357, 427, 561, 623, 671, 979, 1037, 1281, 1309, 1513, 1869, 2013, 2937, 3111, 3927, 4539, 4697, 5429, 6853, 7259, 10591, 11407, 14091, 16287, 16643, 20559, 21777, 31773, 34221, 38003, 49929, 59719, 79849, 92293, 114009, 116501, 179157, 239547, 276879, 349503, 418033, 646051, 1015223, 1254099, 1938153, 3045669, 7106561, 21319683]

約数ペア:

[(1, 21319683), (3, 7106561), (7, 3045669), (11, 1938153), (17, 1254099), (21, 1015223), (33, 646051), (51, 418033), (61, 349503), (77, 276879), (89, 239547), (119, 179157), (183, 116501), (187, 114009), (231, 92293), (267, 79849), (357, 59719), (427, 49929), (561, 38003), (623, 34221), (671, 31773), (979, 21777), (1037, 20559), (1281, 16643), (1309, 16287), (1513, 14091), (1869, 11407), (2013, 10591), (2937, 7259), (3111, 6853), (3927, 5429), (4539, 4697)]