81406809

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4091}}^1$

素因数の和:4178

約数の個数: 32

約数和(自身を含む): 133562880

約数和(自身を除く): 52156071

約数列:

[1, 3, 9, 11, 27, 33, 67, 99, 201, 297, 603, 737, 1809, 2211, 4091, 6633, 12273, 19899, 36819, 45001, 110457, 135003, 274097, 405009, 822291, 1215027, 2466873, 3015067, 7400619, 9045201, 27135603, 81406809]

約数ペア:

[(1, 81406809), (3, 27135603), (9, 9045201), (11, 7400619), (27, 3015067), (33, 2466873), (67, 1215027), (99, 822291), (201, 405009), (297, 274097), (603, 135003), (737, 110457), (1809, 45001), (2211, 36819), (4091, 19899), (6633, 12273)]