21061028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 20033116

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 97, 103, 124, 194, 206, 388, 412, 527, 1054, 1649, 1751, 2108, 3007, 3193, 3298, 3502, 6014, 6386, 6596, 7004, 9991, 12028, 12772, 19982, 39964, 51119, 54281, 102238, 108562, 169847, 204476, 217124, 309721, 339694, 619442, 679388, 1238884, 5265257, 10530514, 21061028]

約数ペア:

[(1, 21061028), (2, 10530514), (4, 5265257), (17, 1238884), (31, 679388), (34, 619442), (62, 339694), (68, 309721), (97, 217124), (103, 204476), (124, 169847), (194, 108562), (206, 102238), (388, 54281), (412, 51119), (527, 39964), (1054, 19982), (1649, 12772), (1751, 12028), (2108, 9991), (3007, 7004), (3193, 6596), (3298, 6386), (3502, 6014)]