19885804

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 35668080

約数和(自身を除く): 15782276

約数列:

[1, 2, 4, 83, 89, 166, 178, 332, 356, 673, 1346, 2692, 7387, 14774, 29548, 55859, 59897, 111718, 119794, 223436, 239588, 4971451, 9942902, 19885804]

約数ペア:

[(1, 19885804), (2, 9942902), (4, 4971451), (83, 239588), (89, 223436), (166, 119794), (178, 111718), (332, 59897), (356, 55859), (673, 29548), (1346, 14774), (2692, 7387)]