209598639

素因数分解:

$3^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1\times {\mathrm{631}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 281639424

約数和(自身を除く): 72040785

約数列:

[1, 3, 263, 421, 631, 789, 1263, 1893, 110723, 165953, 265651, 332169, 497859, 796953, 69866213, 209598639]

約数ペア:

[(1, 209598639), (3, 69866213), (263, 796953), (421, 497859), (631, 332169), (789, 265651), (1263, 165953), (1893, 110723)]