21218958

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{4079}}^1$

素因数の和:4121

約数の個数: 36

約数和(自身を含む): 48849840

約数和(自身を除く): 27630882

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 4079, 5202, 8158, 12237, 24474, 36711, 69343, 73422, 138686, 208029, 416058, 624087, 1178831, 1248174, 2357662, 3536493, 7072986, 10609479, 21218958]

約数ペア:

[(1, 21218958), (2, 10609479), (3, 7072986), (6, 3536493), (9, 2357662), (17, 1248174), (18, 1178831), (34, 624087), (51, 416058), (102, 208029), (153, 138686), (289, 73422), (306, 69343), (578, 36711), (867, 24474), (1734, 12237), (2601, 8158), (4079, 5202)]