197778239

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{541}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 212290560

約数和(自身を除く): 14512321

約数列:

[1, 19, 71, 271, 541, 1349, 5149, 10279, 19241, 38411, 146611, 365579, 729809, 2785609, 10409381, 197778239]

約数ペア:

[(1, 197778239), (19, 10409381), (71, 2785609), (271, 729809), (541, 365579), (1349, 146611), (5149, 38411), (10279, 19241)]