218922891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 325140480

約数和(自身を除く): 106217589

約数列:

[1, 3, 11, 33, 71, 213, 223, 419, 669, 781, 1257, 2343, 2453, 4609, 7359, 13827, 15833, 29749, 47499, 89247, 93437, 174163, 280311, 327239, 522489, 981717, 1027807, 3083421, 6634027, 19902081, 72974297, 218922891]

約数ペア:

[(1, 218922891), (3, 72974297), (11, 19902081), (33, 6634027), (71, 3083421), (213, 1027807), (223, 981717), (419, 522489), (669, 327239), (781, 280311), (1257, 174163), (2343, 93437), (2453, 89247), (4609, 47499), (7359, 29749), (13827, 15833)]