977207

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:76

約数の個数: 20

約数和(自身を含む): 1277256

約数和(自身を除く): 300049

約数列:

[1, 7, 11, 37, 49, 77, 259, 343, 407, 539, 1813, 2401, 2849, 3773, 12691, 19943, 26411, 88837, 139601, 977207]

約数ペア:

[(1, 977207), (7, 139601), (11, 88837), (37, 26411), (49, 19943), (77, 12691), (259, 3773), (343, 2849), (407, 2401), (539, 1813)]