20382873

素因数分解:

$3^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{443}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31786848

約数和(自身を除く): 11403975

約数列:

[1, 3, 7, 21, 49, 147, 313, 443, 939, 1329, 2191, 3101, 6573, 9303, 15337, 21707, 46011, 65121, 138659, 415977, 970613, 2911839, 6794291, 20382873]

約数ペア:

[(1, 20382873), (3, 6794291), (7, 2911839), (21, 970613), (49, 415977), (147, 138659), (313, 65121), (443, 46011), (939, 21707), (1329, 15337), (2191, 9303), (3101, 6573)]