21171942

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{109}}^2$

素因数の和:243

約数の個数: 60

約数和(自身を含む): 52232796

約数和(自身を除く): 31060854

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 109, 162, 198, 218, 297, 327, 594, 654, 891, 981, 1199, 1782, 1962, 2398, 2943, 3597, 5886, 7194, 8829, 10791, 11881, 17658, 21582, 23762, 32373, 35643, 64746, 71286, 97119, 106929, 130691, 194238, 213858, 261382, 320787, 392073, 641574, 784146, 962361, 1176219, 1924722, 2352438, 3528657, 7057314, 10585971, 21171942]

約数ペア:

[(1, 21171942), (2, 10585971), (3, 7057314), (6, 3528657), (9, 2352438), (11, 1924722), (18, 1176219), (22, 962361), (27, 784146), (33, 641574), (54, 392073), (66, 320787), (81, 261382), (99, 213858), (109, 194238), (162, 130691), (198, 106929), (218, 97119), (297, 71286), (327, 64746), (594, 35643), (654, 32373), (891, 23762), (981, 21582), (1199, 17658), (1782, 11881), (1962, 10791), (2398, 8829), (2943, 7194), (3597, 5886)]