971509

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 24

約数和(自身を含む): 1293824

約数和(自身を除く): 322315

約数列:

[1, 7, 11, 31, 37, 77, 121, 217, 259, 341, 407, 847, 1147, 2387, 2849, 3751, 4477, 8029, 12617, 26257, 31339, 88319, 138787, 971509]

約数ペア:

[(1, 971509), (7, 138787), (11, 88319), (31, 31339), (37, 26257), (77, 12617), (121, 8029), (217, 4477), (259, 3751), (341, 2849), (407, 2387), (847, 1147)]