20565363903

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{6237599}}^1$

素因数の和:6237766

約数の個数: 16

約数和(自身を含む): 31537305600

約数和(自身を除く): 10971941697

約数列:

[1, 3, 7, 21, 157, 471, 1099, 3297, 6237599, 18712797, 43663193, 130989579, 979303043, 2937909129, 6855121301, 20565363903]

約数ペア:

[(1, 20565363903), (3, 6855121301), (7, 2937909129), (21, 979303043), (157, 130989579), (471, 43663193), (1099, 18712797), (3297, 6237599)]