21439839

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{1171}}^1$

素因数の和:1550

約数の個数: 16

約数和(自身を含む): 30378240

約数和(自身を除く): 8938401

約数列:

[1, 3, 17, 51, 359, 1077, 1171, 3513, 6103, 18309, 19907, 59721, 420389, 1261167, 7146613, 21439839]

約数ペア:

[(1, 21439839), (3, 7146613), (17, 1261167), (51, 420389), (359, 59721), (1077, 19907), (1171, 18309), (3513, 6103)]