21952845

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6871}}^1$

素因数の和:6953

約数の個数: 24

約数和(自身を含む): 38593152

約数和(自身を除く): 16640307

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6871, 20613, 34355, 61839, 103065, 309195, 487841, 1463523, 2439205, 4390569, 7317615, 21952845]

約数ペア:

[(1, 21952845), (3, 7317615), (5, 4390569), (9, 2439205), (15, 1463523), (45, 487841), (71, 309195), (213, 103065), (355, 61839), (639, 34355), (1065, 20613), (3195, 6871)]