21299434

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12227}}^1$

素因数の和:12309

約数の個数: 16

約数和(自身を含む): 34923168

約数和(自身を除く): 13623734

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12227, 24454, 158951, 317902, 819209, 1638418, 10649717, 21299434]

約数ペア:

[(1, 21299434), (2, 10649717), (13, 1638418), (26, 819209), (67, 317902), (134, 158951), (871, 24454), (1742, 12227)]