21995170

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{9203}}^1$

素因数の和:9449

約数の個数: 16

約数和(自身を含む): 39761280

約数和(自身を除く): 17766110

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 9203, 18406, 46015, 92030, 2199517, 4399034, 10997585, 21995170]

約数ペア:

[(1, 21995170), (2, 10997585), (5, 4399034), (10, 2199517), (239, 92030), (478, 46015), (1195, 18406), (2390, 9203)]