21719452

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{5023}}^1$

素因数の和:5097

約数の個数: 24

約数和(自身を含む): 40513536

約数和(自身を除く): 18794084

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 188, 1081, 2162, 4324, 5023, 10046, 20092, 115529, 231058, 236081, 462116, 472162, 944324, 5429863, 10859726, 21719452]

約数ペア:

[(1, 21719452), (2, 10859726), (4, 5429863), (23, 944324), (46, 472162), (47, 462116), (92, 236081), (94, 231058), (188, 115529), (1081, 20092), (2162, 10046), (4324, 5023)]