2181039

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 3482928

約数和(自身を除く): 1301889

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 401, 777, 1203, 1813, 2807, 5439, 8421, 14837, 19649, 44511, 58947, 103859, 311577, 727013, 2181039]

約数ペア:

[(1, 2181039), (3, 727013), (7, 311577), (21, 103859), (37, 58947), (49, 44511), (111, 19649), (147, 14837), (259, 8421), (401, 5439), (777, 2807), (1203, 1813)]