643567498

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{7691}}^1$

素因数の和:7882

約数の個数: 32

約数和(自身を含む): 1137185280

約数和(自身を除く): 493617782

約数列:

[1, 2, 7, 14, 43, 86, 139, 278, 301, 602, 973, 1946, 5977, 7691, 11954, 15382, 41839, 53837, 83678, 107674, 330713, 661426, 1069049, 2138098, 2314991, 4629982, 7483343, 14966686, 45969107, 91938214, 321783749, 643567498]

約数ペア:

[(1, 643567498), (2, 321783749), (7, 91938214), (14, 45969107), (43, 14966686), (86, 7483343), (139, 4629982), (278, 2314991), (301, 2138098), (602, 1069049), (973, 661426), (1946, 330713), (5977, 107674), (7691, 83678), (11954, 53837), (15382, 41839)]