639888914

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{333623}}^1$

素因数の和:333769

約数の個数: 16

約数和(自身を含む): 1104962688

約数和(自身を除く): 465073774

約数列:

[1, 2, 7, 14, 137, 274, 959, 1918, 333623, 667246, 2335361, 4670722, 45706351, 91412702, 319944457, 639888914]

約数ペア:

[(1, 639888914), (2, 319944457), (7, 91412702), (14, 45706351), (137, 4670722), (274, 2335361), (959, 667246), (1918, 333623)]