20786918

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4783}}^1$

素因数の和:4879

約数の個数: 16

約数和(自身を含む): 32550336

約数和(自身を除く): 11763418

約数列:

[1, 2, 41, 53, 82, 106, 2173, 4346, 4783, 9566, 196103, 253499, 392206, 506998, 10393459, 20786918]

約数ペア:

[(1, 20786918), (2, 10393459), (41, 506998), (53, 392206), (82, 253499), (106, 196103), (2173, 9566), (4346, 4783)]