21390099

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 29113344

約数和(自身を除く): 7723245

約数列:

[1, 3, 71, 213, 233, 431, 699, 1293, 16543, 30601, 49629, 91803, 100423, 301269, 7130033, 21390099]

約数ペア:

[(1, 21390099), (3, 7130033), (71, 301269), (213, 100423), (233, 91803), (431, 49629), (699, 30601), (1293, 16543)]