81765459

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 120071952

約数和(自身を除く): 38306493

約数列:

[1, 3, 9, 101, 293, 303, 307, 879, 909, 921, 2637, 2763, 29593, 31007, 88779, 89951, 93021, 266337, 269853, 279063, 809559, 9085051, 27255153, 81765459]

約数ペア:

[(1, 81765459), (3, 27255153), (9, 9085051), (101, 809559), (293, 279063), (303, 269853), (307, 266337), (879, 93021), (909, 89951), (921, 88779), (2637, 31007), (2763, 29593)]