21011958

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{106121}}^1$

素因数の和:106140

約数の個数: 24

約数和(自身を含む): 49665096

約数和(自身を除く): 28653138

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 106121, 212242, 318363, 636726, 955089, 1167331, 1910178, 2334662, 3501993, 7003986, 10505979, 21011958]

約数ペア:

[(1, 21011958), (2, 10505979), (3, 7003986), (6, 3501993), (9, 2334662), (11, 1910178), (18, 1167331), (22, 955089), (33, 636726), (66, 318363), (99, 212242), (198, 106121)]