20578095

素因数分解:

$3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1061}}^1$

素因数の和:1503

約数の個数: 24

約数和(自身を含む): 35785152

約数和(自身を除く): 15207057

約数列:

[1, 3, 5, 9, 15, 45, 431, 1061, 1293, 2155, 3183, 3879, 5305, 6465, 9549, 15915, 19395, 47745, 457291, 1371873, 2286455, 4115619, 6859365, 20578095]

約数ペア:

[(1, 20578095), (3, 6859365), (5, 4115619), (9, 2286455), (15, 1371873), (45, 457291), (431, 47745), (1061, 19395), (1293, 15915), (2155, 9549), (3183, 6465), (3879, 5305)]