21085618

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{1249}}^1$

素因数の和:1641

約数の個数: 16

約数和(自身を含む): 33120000

約数和(自身を除く): 12034382

約数列:

[1, 2, 23, 46, 367, 734, 1249, 2498, 8441, 16882, 28727, 57454, 458383, 916766, 10542809, 21085618]

約数ペア:

[(1, 21085618), (2, 10542809), (23, 916766), (46, 458383), (367, 57454), (734, 28727), (1249, 16882), (2498, 8441)]