218991993

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{288527}}^1$

素因数の和:288564

約数の個数: 16

約数和(自身を含む): 332384256

約数和(自身を除く): 113392263

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 288527, 865581, 3173797, 6636121, 9521391, 19908363, 72997331, 218991993]

約数ペア:

[(1, 218991993), (3, 72997331), (11, 19908363), (23, 9521391), (33, 6636121), (69, 3173797), (253, 865581), (759, 288527)]