20161155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 37131264

約数和(自身を除く): 16970109

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 157, 471, 785, 1099, 1223, 2355, 3297, 3669, 5495, 6115, 8561, 16485, 18345, 25683, 42805, 128415, 192011, 576033, 960055, 1344077, 2880165, 4032231, 6720385, 20161155]

約数ペア:

[(1, 20161155), (3, 6720385), (5, 4032231), (7, 2880165), (15, 1344077), (21, 960055), (35, 576033), (105, 192011), (157, 128415), (471, 42805), (785, 25683), (1099, 18345), (1223, 16485), (2355, 8561), (3297, 6115), (3669, 5495)]