21583341

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 35235200

約数和(自身を除く): 13651859

約数列:

[1, 3, 9, 13, 27, 39, 81, 103, 117, 199, 309, 351, 597, 927, 1053, 1339, 1791, 2587, 2781, 4017, 5373, 7761, 8343, 12051, 16119, 20497, 23283, 36153, 61491, 69849, 108459, 184473, 209547, 266461, 553419, 799383, 1660257, 2398149, 7194447, 21583341]

約数ペア:

[(1, 21583341), (3, 7194447), (9, 2398149), (13, 1660257), (27, 799383), (39, 553419), (81, 266461), (103, 209547), (117, 184473), (199, 108459), (309, 69849), (351, 61491), (597, 36153), (927, 23283), (1053, 20497), (1339, 16119), (1791, 12051), (2587, 8343), (2781, 7761), (4017, 5373)]