20451982

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:695

約数の個数: 16

約数和(自身を含む): 31135104

約数和(自身を除く): 10683122

約数列:

[1, 2, 131, 251, 262, 311, 502, 622, 32881, 40741, 65762, 78061, 81482, 156122, 10225991, 20451982]

約数ペア:

[(1, 20451982), (2, 10225991), (131, 156122), (251, 81482), (262, 78061), (311, 65762), (502, 40741), (622, 32881)]