19966191

素因数分解:

$3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{2371}}^1$

素因数の和:2782

約数の個数: 16

約数和(自身を含む): 30513408

約数和(自身を除く): 10547217

約数列:

[1, 3, 7, 21, 401, 1203, 2371, 2807, 7113, 8421, 16597, 49791, 950771, 2852313, 6655397, 19966191]

約数ペア:

[(1, 19966191), (3, 6655397), (7, 2852313), (21, 950771), (401, 49791), (1203, 16597), (2371, 8421), (2807, 7113)]