201891321

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{27457}}^1$

素因数の和:27525

約数の個数: 24

約数和(自身を含む): 314119520

約数和(自身を除く): 112228199

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 7353, 27457, 82371, 247113, 521683, 1180651, 1565049, 3541953, 4695147, 10625859, 22432369, 67297107, 201891321]

約数ペア:

[(1, 201891321), (3, 67297107), (9, 22432369), (19, 10625859), (43, 4695147), (57, 3541953), (129, 1565049), (171, 1180651), (387, 521683), (817, 247113), (2451, 82371), (7353, 27457)]