6421821

素因数分解:

$3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{977}}^1$

素因数の和:1300

約数の個数: 16

約数和(自身を含む): 9826944

約数和(自身を除く): 3405123

約数列:

[1, 3, 7, 21, 313, 939, 977, 2191, 2931, 6573, 6839, 20517, 305801, 917403, 2140607, 6421821]

約数ペア:

[(1, 6421821), (3, 2140607), (7, 917403), (21, 305801), (313, 20517), (939, 6839), (977, 6573), (2191, 2931)]