20719555

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:2006

約数の個数: 16

約数和(自身を含む): 25964064

約数和(自身を除く): 5244509

約数列:

[1, 5, 41, 53, 205, 265, 1907, 2173, 9535, 10865, 78187, 101071, 390935, 505355, 4143911, 20719555]

約数ペア:

[(1, 20719555), (5, 4143911), (41, 505355), (53, 390935), (205, 101071), (265, 78187), (1907, 10865), (2173, 9535)]