20403972

素因数分解:

$2^2\times 3^2\times {\mathrm{281}}^1\times {\mathrm{2017}}^1$

素因数の和:2308

約数の個数: 36

約数和(自身を含む): 51785916

約数和(自身を除く): 31381944

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 281, 562, 843, 1124, 1686, 2017, 2529, 3372, 4034, 5058, 6051, 8068, 10116, 12102, 18153, 24204, 36306, 72612, 566777, 1133554, 1700331, 2267108, 3400662, 5100993, 6801324, 10201986, 20403972]

約数ペア:

[(1, 20403972), (2, 10201986), (3, 6801324), (4, 5100993), (6, 3400662), (9, 2267108), (12, 1700331), (18, 1133554), (36, 566777), (281, 72612), (562, 36306), (843, 24204), (1124, 18153), (1686, 12102), (2017, 10116), (2529, 8068), (3372, 6051), (4034, 5058)]