20818588

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32327}}^1$

素因数の和:32361

約数の個数: 24

約数和(自身を含む): 43448832

約数和(自身を除く): 22630244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32327, 64654, 129308, 226289, 452578, 743521, 905156, 1487042, 2974084, 5204647, 10409294, 20818588]

約数ペア:

[(1, 20818588), (2, 10409294), (4, 5204647), (7, 2974084), (14, 1487042), (23, 905156), (28, 743521), (46, 452578), (92, 226289), (161, 129308), (322, 64654), (644, 32327)]