2551563

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 4264416

約数和(自身を除く): 1712853

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 401, 707, 909, 1203, 2121, 2807, 3609, 6363, 8421, 25263, 40501, 121503, 283507, 364509, 850521, 2551563]

約数ペア:

[(1, 2551563), (3, 850521), (7, 364509), (9, 283507), (21, 121503), (63, 40501), (101, 25263), (303, 8421), (401, 6363), (707, 3609), (909, 2807), (1203, 2121)]