261748449

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{65063}}^1$

素因数の和:65221

約数の個数: 16

約数和(自身を含む): 390384000

約数和(自身を除く): 128635551

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 65063, 195189, 585567, 1756701, 9694387, 29083161, 87249483, 261748449]

約数ペア:

[(1, 261748449), (3, 87249483), (9, 29083161), (27, 9694387), (149, 1756701), (447, 585567), (1341, 195189), (4023, 65063)]