20393121

素因数分解:

$3^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{1307}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 31140864

約数和(自身を除く): 10747743

約数列:

[1, 3, 7, 21, 743, 1307, 2229, 3921, 5201, 9149, 15603, 27447, 971101, 2913303, 6797707, 20393121]

約数ペア:

[(1, 20393121), (3, 6797707), (7, 2913303), (21, 971101), (743, 27447), (1307, 15603), (2229, 9149), (3921, 5201)]