64191519

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 116663040

約数和(自身を除く): 52471521

約数列:

[1, 3, 7, 9, 19, 21, 47, 49, 57, 63, 133, 141, 147, 163, 171, 329, 399, 423, 441, 489, 893, 931, 987, 1141, 1197, 1467, 2303, 2679, 2793, 2961, 3097, 3423, 6251, 6909, 7661, 7987, 8037, 8379, 9291, 10269, 18753, 20727, 21679, 22983, 23961, 27873, 43757, 53627, 56259, 65037, 68949, 71883, 131271, 145559, 151753, 160881, 195111, 375389, 393813, 436677, 455259, 482643, 1018913, 1126167, 1310031, 1365777, 3056739, 3378501, 7132391, 9170217, 21397173, 64191519]

約数ペア:

[(1, 64191519), (3, 21397173), (7, 9170217), (9, 7132391), (19, 3378501), (21, 3056739), (47, 1365777), (49, 1310031), (57, 1126167), (63, 1018913), (133, 482643), (141, 455259), (147, 436677), (163, 393813), (171, 375389), (329, 195111), (399, 160881), (423, 151753), (441, 145559), (489, 131271), (893, 71883), (931, 68949), (987, 65037), (1141, 56259), (1197, 53627), (1467, 43757), (2303, 27873), (2679, 23961), (2793, 22983), (2961, 21679), (3097, 20727), (3423, 18753), (6251, 10269), (6909, 9291), (7661, 8379), (7987, 8037)]