21327843

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{773}}^1$

素因数の和:1334

約数の個数: 16

約数和(自身を含む): 30204576

約数和(自身を除く): 8876733

約数列:

[1, 3, 17, 51, 541, 773, 1623, 2319, 9197, 13141, 27591, 39423, 418193, 1254579, 7109281, 21327843]

約数ペア:

[(1, 21327843), (3, 7109281), (17, 1254579), (51, 418193), (541, 39423), (773, 27591), (1623, 13141), (2319, 9197)]