13387689

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 23272704

約数和(自身を除く): 9885015

約数列:

[1, 3, 7, 9, 21, 41, 63, 71, 73, 123, 213, 219, 287, 369, 497, 511, 639, 657, 861, 1491, 1533, 2583, 2911, 2993, 4473, 4599, 5183, 8733, 8979, 15549, 20377, 20951, 26199, 26937, 36281, 46647, 61131, 62853, 108843, 183393, 188559, 212503, 326529, 637509, 1487521, 1912527, 4462563, 13387689]

約数ペア:

[(1, 13387689), (3, 4462563), (7, 1912527), (9, 1487521), (21, 637509), (41, 326529), (63, 212503), (71, 188559), (73, 183393), (123, 108843), (213, 62853), (219, 61131), (287, 46647), (369, 36281), (497, 26937), (511, 26199), (639, 20951), (657, 20377), (861, 15549), (1491, 8979), (1533, 8733), (2583, 5183), (2911, 4599), (2993, 4473)]