21109198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10781}}^1$

素因数の和:10883

約数の個数: 16

約数和(自身を含む): 34933680

約数和(自身を除く): 13824482

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 10781, 21562, 118591, 237182, 959509, 1919018, 10554599, 21109198]

約数ペア:

[(1, 21109198), (2, 10554599), (11, 1919018), (22, 959509), (89, 237182), (178, 118591), (979, 21562), (1958, 10781)]