21000638853

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{25090369}}^1$

素因数の和:25090409

約数の個数: 16

約数和(自身を含む): 32115673600

約数和(自身を除く): 11115034747

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 25090369, 75271107, 225813321, 677439963, 777801439, 2333404317, 7000212951, 21000638853]

約数ペア:

[(1, 21000638853), (3, 7000212951), (9, 2333404317), (27, 777801439), (31, 677439963), (93, 225813321), (279, 75271107), (837, 25090369)]