138587918

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{319327}}^1$

素因数の和:319367

約数の個数: 16

約数和(自身を含む): 245243904

約数和(自身を除く): 106655986

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 319327, 638654, 2235289, 4470578, 9899137, 19798274, 69293959, 138587918]

約数ペア:

[(1, 138587918), (2, 69293959), (7, 19798274), (14, 9899137), (31, 4470578), (62, 2235289), (217, 638654), (434, 319327)]