20716503045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{439421}}^1$

素因数の和:439885

約数の個数: 32

約数和(自身を含む): 37966060800

約数和(自身を除く): 17249557755

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 449, 1347, 2245, 3143, 6735, 9429, 15715, 47145, 439421, 1318263, 2197105, 3075947, 6591315, 9227841, 15379735, 46139205, 197300029, 591900087, 986500145, 1381100203, 2959500435, 4143300609, 6905501015, 20716503045]

約数ペア:

[(1, 20716503045), (3, 6905501015), (5, 4143300609), (7, 2959500435), (15, 1381100203), (21, 986500145), (35, 591900087), (105, 197300029), (449, 46139205), (1347, 15379735), (2245, 9227841), (3143, 6591315), (6735, 3075947), (9429, 2197105), (15715, 1318263), (47145, 439421)]