21478793

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1117}}^1$

素因数の和:1232

約数の個数: 16

約数和(自身を含む): 25544064

約数和(自身を除く): 4065271

約数列:

[1, 7, 41, 67, 287, 469, 1117, 2747, 7819, 19229, 45797, 74839, 320579, 523873, 3068399, 21478793]

約数ペア:

[(1, 21478793), (7, 3068399), (41, 523873), (67, 320579), (287, 74839), (469, 45797), (1117, 19229), (2747, 7819)]