18246669

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 30643200

約数和(自身を除く): 12396531

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 133, 139, 141, 147, 329, 399, 417, 893, 931, 973, 987, 2303, 2641, 2679, 2793, 2919, 6251, 6533, 6811, 6909, 7923, 18487, 18753, 19599, 20433, 43757, 45731, 55461, 124127, 129409, 131271, 137193, 320117, 372381, 388227, 868889, 960351, 2606667, 6082223, 18246669]

約数ペア:

[(1, 18246669), (3, 6082223), (7, 2606667), (19, 960351), (21, 868889), (47, 388227), (49, 372381), (57, 320117), (133, 137193), (139, 131271), (141, 129409), (147, 124127), (329, 55461), (399, 45731), (417, 43757), (893, 20433), (931, 19599), (973, 18753), (987, 18487), (2303, 7923), (2641, 6909), (2679, 6811), (2793, 6533), (2919, 6251)]