21747184

素因数分解:

$2^4\times {\mathrm{347}}^1\times {\mathrm{3917}}^1$

素因数の和:4272

約数の個数: 20

約数和(自身を含む): 42267384

約数和(自身を除く): 20520200

約数列:

[1, 2, 4, 8, 16, 347, 694, 1388, 2776, 3917, 5552, 7834, 15668, 31336, 62672, 1359199, 2718398, 5436796, 10873592, 21747184]

約数ペア:

[(1, 21747184), (2, 10873592), (4, 5436796), (8, 2718398), (16, 1359199), (347, 62672), (694, 31336), (1388, 15668), (2776, 7834), (3917, 5552)]