20969465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{13147}}^1$

素因数の和:13192

約数の個数: 16

約数和(自身を含む): 28399680

約数和(自身を除く): 7430215

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 13147, 65735, 144617, 381263, 723085, 1906315, 4193893, 20969465]

約数ペア:

[(1, 20969465), (5, 4193893), (11, 1906315), (29, 723085), (55, 381263), (145, 144617), (319, 65735), (1595, 13147)]