13287477

素因数分解:

$3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 21280000

約数和(自身を除く): 7992523

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 343, 349, 777, 1029, 1047, 1813, 2443, 5439, 7329, 12691, 12913, 17101, 38073, 38739, 51303, 90391, 119707, 271173, 359121, 632737, 1898211, 4429159, 13287477]

約数ペア:

[(1, 13287477), (3, 4429159), (7, 1898211), (21, 632737), (37, 359121), (49, 271173), (111, 119707), (147, 90391), (259, 51303), (343, 38739), (349, 38073), (777, 17101), (1029, 12913), (1047, 12691), (1813, 7329), (2443, 5439)]