20805220815

素因数分解:

$3^1\times 5^1\times {\mathrm{5641}}^1\times {\mathrm{245881}}^1$

素因数の和:251530

約数の個数: 16

約数和(自身を含む): 33294389856

約数和(自身を除く): 12489169041

約数列:

[1, 3, 5, 15, 5641, 16923, 28205, 84615, 245881, 737643, 1229405, 3688215, 1387014721, 4161044163, 6935073605, 20805220815]

約数ペア:

[(1, 20805220815), (3, 6935073605), (5, 4161044163), (15, 1387014721), (5641, 3688215), (16923, 1229405), (28205, 737643), (84615, 245881)]