845721

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 20

約数和(自身を含む): 1293732

約数和(自身を除く): 448011

約数列:

[1, 3, 9, 27, 53, 81, 159, 197, 477, 591, 1431, 1773, 4293, 5319, 10441, 15957, 31323, 93969, 281907, 845721]

約数ペア:

[(1, 845721), (3, 281907), (9, 93969), (27, 31323), (53, 15957), (81, 10441), (159, 5319), (197, 4293), (477, 1773), (591, 1431)]