261330573

素因数分解:

$3^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{4013}}^1$

素因数の和:4473

約数の個数: 24

約数和(自身を含む): 406345248

約数和(自身を除く): 145014675

約数列:

[1, 3, 7, 21, 49, 147, 443, 1329, 3101, 4013, 9303, 12039, 21707, 28091, 65121, 84273, 196637, 589911, 1777759, 5333277, 12444313, 37332939, 87110191, 261330573]

約数ペア:

[(1, 261330573), (3, 87110191), (7, 37332939), (21, 12444313), (49, 5333277), (147, 1777759), (443, 589911), (1329, 196637), (3101, 84273), (4013, 65121), (9303, 28091), (12039, 21707)]