20964916

素因数分解:

$2^2\times 7^1\times {\mathrm{751}}^1\times {\mathrm{997}}^1$

素因数の和:1759

約数の個数: 24

約数和(自身を含む): 42027776

約数和(自身を除く): 21062860

約数列:

[1, 2, 4, 7, 14, 28, 751, 997, 1502, 1994, 3004, 3988, 5257, 6979, 10514, 13958, 21028, 27916, 748747, 1497494, 2994988, 5241229, 10482458, 20964916]

約数ペア:

[(1, 20964916), (2, 10482458), (4, 5241229), (7, 2994988), (14, 1497494), (28, 748747), (751, 27916), (997, 21028), (1502, 13958), (1994, 10514), (3004, 6979), (3988, 5257)]