199903018

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{138629}}^1$

素因数の和:138741

約数の個数: 16

約数和(自身を含む): 346020480

約数和(自身を除く): 146117462

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 138629, 277258, 970403, 1940806, 14278787, 28557574, 99951509, 199903018]

約数ペア:

[(1, 199903018), (2, 99951509), (7, 28557574), (14, 14278787), (103, 1940806), (206, 970403), (721, 277258), (1442, 138629)]