66643479

素因数分解:

$3^5\times 7^2\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 120753360

約数和(自身を除く): 54109881

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 147, 189, 193, 203, 243, 261, 441, 567, 579, 609, 783, 1323, 1351, 1421, 1701, 1737, 1827, 2349, 3969, 4053, 4263, 5211, 5481, 5597, 7047, 9457, 11907, 12159, 12789, 15633, 16443, 16791, 28371, 36477, 38367, 39179, 46899, 49329, 50373, 85113, 109431, 115101, 117537, 151119, 255339, 274253, 328293, 345303, 352611, 453357, 766017, 822759, 1057833, 1360071, 2298051, 2468277, 3173499, 7404831, 9520497, 22214493, 66643479]

約数ペア:

[(1, 66643479), (3, 22214493), (7, 9520497), (9, 7404831), (21, 3173499), (27, 2468277), (29, 2298051), (49, 1360071), (63, 1057833), (81, 822759), (87, 766017), (147, 453357), (189, 352611), (193, 345303), (203, 328293), (243, 274253), (261, 255339), (441, 151119), (567, 117537), (579, 115101), (609, 109431), (783, 85113), (1323, 50373), (1351, 49329), (1421, 46899), (1701, 39179), (1737, 38367), (1827, 36477), (2349, 28371), (3969, 16791), (4053, 16443), (4263, 15633), (5211, 12789), (5481, 12159), (5597, 11907), (7047, 9457)]