1999849671

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{100591}}^1$

素因数の和:100691

約数の個数: 18

約数和(自身を含む): 2951469872

約数和(自身を除く): 951620201

約数列:

[1, 3, 9, 47, 141, 423, 2209, 6627, 19881, 100591, 301773, 905319, 4727777, 14183331, 42549993, 222205519, 666616557, 1999849671]

約数ペア:

[(1, 1999849671), (3, 666616557), (9, 222205519), (47, 42549993), (141, 14183331), (423, 4727777), (2209, 905319), (6627, 301773), (19881, 100591)]