21135418

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{3847}}^1$

素因数の和:3957

約数の個数: 16

約数和(自身を含む): 32969664

約数和(自身を除く): 11834246

約数列:

[1, 2, 41, 67, 82, 134, 2747, 3847, 5494, 7694, 157727, 257749, 315454, 515498, 10567709, 21135418]

約数ペア:

[(1, 21135418), (2, 10567709), (41, 515498), (67, 315454), (82, 257749), (134, 157727), (2747, 7694), (3847, 5494)]