647831249

素因数分解:

${\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 722747520

約数和(自身を除く): 74916271

約数列:

[1, 13, 43, 169, 239, 373, 559, 3107, 4849, 7267, 10277, 16039, 40391, 63037, 89147, 133601, 208507, 1158911, 1736813, 2710591, 3833321, 15065843, 49833173, 647831249]

約数ペア:

[(1, 647831249), (13, 49833173), (43, 15065843), (169, 3833321), (239, 2710591), (373, 1736813), (559, 1158911), (3107, 208507), (4849, 133601), (7267, 89147), (10277, 63037), (16039, 40391)]