21043518

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{2003}}^1$

素因数の和:2128

約数の個数: 32

約数和(自身を含む): 45017856

約数和(自身を除く): 23974338

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 103, 206, 309, 618, 1751, 2003, 3502, 4006, 5253, 6009, 10506, 12018, 34051, 68102, 102153, 204306, 206309, 412618, 618927, 1237854, 3507253, 7014506, 10521759, 21043518]

約数ペア:

[(1, 21043518), (2, 10521759), (3, 7014506), (6, 3507253), (17, 1237854), (34, 618927), (51, 412618), (102, 206309), (103, 204306), (206, 102153), (309, 68102), (618, 34051), (1751, 12018), (2003, 10506), (3502, 6009), (4006, 5253)]