21390194

素因数分解:

$2^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{2237}}^1$

素因数の和:2929

約数の個数: 16

約数和(自身を含む): 36739008

約数和(自身を除く): 15348814

約数列:

[1, 2, 7, 14, 683, 1366, 2237, 4474, 4781, 9562, 15659, 31318, 1527871, 3055742, 10695097, 21390194]

約数ペア:

[(1, 21390194), (2, 10695097), (7, 3055742), (14, 1527871), (683, 31318), (1366, 15659), (2237, 9562), (4474, 4781)]