520118977

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1327}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 638874240

約数和(自身を除く): 118755263

約数列:

[1, 7, 19, 49, 133, 421, 931, 1327, 2947, 7999, 9289, 20629, 25213, 55993, 65023, 176491, 391951, 558667, 1235437, 3910669, 10614673, 27374683, 74302711, 520118977]

約数ペア:

[(1, 520118977), (7, 74302711), (19, 27374683), (49, 10614673), (133, 3910669), (421, 1235437), (931, 558667), (1327, 391951), (2947, 176491), (7999, 65023), (9289, 55993), (20629, 25213)]