19954623

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 29903104

約数和(自身を除く): 9948481

約数列:

[1, 3, 13, 39, 43, 73, 129, 163, 219, 489, 559, 949, 1677, 2119, 2847, 3139, 6357, 7009, 9417, 11899, 21027, 35697, 40807, 91117, 122421, 154687, 273351, 464061, 511657, 1534971, 6651541, 19954623]

約数ペア:

[(1, 19954623), (3, 6651541), (13, 1534971), (39, 511657), (43, 464061), (73, 273351), (129, 154687), (163, 122421), (219, 91117), (489, 40807), (559, 35697), (949, 21027), (1677, 11899), (2119, 9417), (2847, 7009), (3139, 6357)]