21808256

素因数分解:

$2^7\times {\mathrm{347}}^1\times {\mathrm{491}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 43660080

約数和(自身を除く): 21851824

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 347, 491, 694, 982, 1388, 1964, 2776, 3928, 5552, 7856, 11104, 15712, 22208, 31424, 44416, 62848, 170377, 340754, 681508, 1363016, 2726032, 5452064, 10904128, 21808256]

約数ペア:

[(1, 21808256), (2, 10904128), (4, 5452064), (8, 2726032), (16, 1363016), (32, 681508), (64, 340754), (128, 170377), (347, 62848), (491, 44416), (694, 31424), (982, 22208), (1388, 15712), (1964, 11104), (2776, 7856), (3928, 5552)]