201531309

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{505091}}^1$

素因数の和:505120

約数の個数: 16

約数和(自身を含む): 323258880

約数和(自身を除く): 121727571

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 505091, 1515273, 3535637, 9596729, 10606911, 28790187, 67177103, 201531309]

約数ペア:

[(1, 201531309), (3, 67177103), (7, 28790187), (19, 10606911), (21, 9596729), (57, 3535637), (133, 1515273), (399, 505091)]