69521319

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 119688192

約数和(自身を除く): 50166873

約数列:

[1, 3, 7, 9, 21, 47, 53, 63, 141, 159, 329, 371, 423, 443, 477, 987, 1113, 1329, 2491, 2961, 3101, 3339, 3987, 7473, 9303, 17437, 20821, 22419, 23479, 27909, 52311, 62463, 70437, 145747, 156933, 164353, 187389, 211311, 437241, 493059, 1103513, 1311723, 1479177, 3310539, 7724591, 9931617, 23173773, 69521319]

約数ペア:

[(1, 69521319), (3, 23173773), (7, 9931617), (9, 7724591), (21, 3310539), (47, 1479177), (53, 1311723), (63, 1103513), (141, 493059), (159, 437241), (329, 211311), (371, 187389), (423, 164353), (443, 156933), (477, 145747), (987, 70437), (1113, 62463), (1329, 52311), (2491, 27909), (2961, 23479), (3101, 22419), (3339, 20821), (3987, 17437), (7473, 9303)]