21042512

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32077}}^1$

素因数の和:32126

約数の個数: 20

約数和(自身を含む): 41765556

約数和(自身を除く): 20723044

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32077, 64154, 128308, 256616, 513232, 1315157, 2630314, 5260628, 10521256, 21042512]

約数ペア:

[(1, 21042512), (2, 10521256), (4, 5260628), (8, 2630314), (16, 1315157), (41, 513232), (82, 256616), (164, 128308), (328, 64154), (656, 32077)]