208023723

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{1489}}^1$

素因数の和:1576

約数の個数: 36

約数和(自身を含む): 324718680

約数和(自身を除く): 116694957

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 361, 387, 817, 1083, 1489, 2451, 3249, 4467, 7353, 13401, 15523, 28291, 46569, 64027, 84873, 139707, 192081, 254619, 537529, 576243, 1216513, 1612587, 3649539, 4837761, 10948617, 23113747, 69341241, 208023723]

約数ペア:

[(1, 208023723), (3, 69341241), (9, 23113747), (19, 10948617), (43, 4837761), (57, 3649539), (129, 1612587), (171, 1216513), (361, 576243), (387, 537529), (817, 254619), (1083, 192081), (1489, 139707), (2451, 84873), (3249, 64027), (4467, 46569), (7353, 28291), (13401, 15523)]