21984995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{13613}}^1$

素因数の和:13654

約数の個数: 16

約数和(自身を含む): 29406240

約数和(自身を除く): 7421245

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 13613, 68065, 231421, 258647, 1157105, 1293235, 4396999, 21984995]

約数ペア:

[(1, 21984995), (5, 4396999), (17, 1293235), (19, 1157105), (85, 258647), (95, 231421), (323, 68065), (1615, 13613)]