21676986

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 49832640

約数和(自身を除く): 28155654

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 241, 263, 342, 482, 526, 723, 789, 1446, 1578, 2169, 2367, 4338, 4579, 4734, 4997, 9158, 9994, 13737, 14991, 27474, 29982, 41211, 44973, 63383, 82422, 89946, 126766, 190149, 380298, 570447, 1140894, 1204277, 2408554, 3612831, 7225662, 10838493, 21676986]

約数ペア:

[(1, 21676986), (2, 10838493), (3, 7225662), (6, 3612831), (9, 2408554), (18, 1204277), (19, 1140894), (38, 570447), (57, 380298), (114, 190149), (171, 126766), (241, 89946), (263, 82422), (342, 63383), (482, 44973), (526, 41211), (723, 29982), (789, 27474), (1446, 14991), (1578, 13737), (2169, 9994), (2367, 9158), (4338, 4997), (4579, 4734)]