16721391

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{3617}}^1$

素因数の和:3710

約数の個数: 16

約数和(自身を含む): 23618304

約数和(自身を除く): 6896913

約数列:

[1, 3, 23, 67, 69, 201, 1541, 3617, 4623, 10851, 83191, 242339, 249573, 727017, 5573797, 16721391]

約数ペア:

[(1, 16721391), (3, 5573797), (23, 727017), (67, 249573), (69, 242339), (201, 83191), (1541, 10851), (3617, 4623)]