21343551

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{971}}^1$

素因数の和:1422

約数の個数: 16

約数和(自身を含む): 30233088

約数和(自身を除く): 8889537

約数列:

[1, 3, 17, 51, 431, 971, 1293, 2913, 7327, 16507, 21981, 49521, 418501, 1255503, 7114517, 21343551]

約数ペア:

[(1, 21343551), (3, 7114517), (17, 1255503), (51, 418501), (431, 49521), (971, 21981), (1293, 16507), (2913, 7327)]