71238699

素因数分解:

$3^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 122803200

約数和(自身を除く): 51564501

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 343, 423, 441, 491, 987, 1029, 1473, 2303, 2961, 3087, 3437, 4419, 6909, 10311, 16121, 20727, 23077, 24059, 30933, 48363, 69231, 72177, 145089, 161539, 168413, 207693, 216531, 484617, 505239, 1130773, 1453851, 1515717, 3392319, 7915411, 10176957, 23746233, 71238699]

約数ペア:

[(1, 71238699), (3, 23746233), (7, 10176957), (9, 7915411), (21, 3392319), (47, 1515717), (49, 1453851), (63, 1130773), (141, 505239), (147, 484617), (329, 216531), (343, 207693), (423, 168413), (441, 161539), (491, 145089), (987, 72177), (1029, 69231), (1473, 48363), (2303, 30933), (2961, 24059), (3087, 23077), (3437, 20727), (4419, 16121), (6909, 10311)]