20710209

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1471}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 31406592

約数和(自身を除く): 10696383

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 1083, 1471, 4413, 4693, 14079, 19123, 27949, 57369, 83847, 363337, 531031, 1090011, 1593093, 6903403, 20710209]

約数ペア:

[(1, 20710209), (3, 6903403), (13, 1593093), (19, 1090011), (39, 531031), (57, 363337), (247, 83847), (361, 57369), (741, 27949), (1083, 19123), (1471, 14079), (4413, 4693)]