21983140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{7001}}^1$

素因数の和:7167

約数の個数: 24

約数和(自身を含む): 46465272

約数和(自身を除く): 24482132

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 7001, 14002, 28004, 35005, 70010, 140020, 1099157, 2198314, 4396628, 5495785, 10991570, 21983140]

約数ペア:

[(1, 21983140), (2, 10991570), (4, 5495785), (5, 4396628), (10, 2198314), (20, 1099157), (157, 140020), (314, 70010), (628, 35005), (785, 28004), (1570, 14002), (3140, 7001)]