845565561

素因数分解:

$3^4\times {\mathrm{509}}^1\times {\mathrm{20509}}^1$

素因数の和:21030

約数の個数: 20

約数和(自身を含む): 1265672100

約数和(自身を除く): 420106539

約数列:

[1, 3, 9, 27, 81, 509, 1527, 4581, 13743, 20509, 41229, 61527, 184581, 553743, 1661229, 10439081, 31317243, 93951729, 281855187, 845565561]

約数ペア:

[(1, 845565561), (3, 281855187), (9, 93951729), (27, 31317243), (81, 10439081), (509, 1661229), (1527, 553743), (4581, 184581), (13743, 61527), (20509, 41229)]