208565566

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{220471}}^1$

素因数の和:220527

約数の個数: 16

約数和(自身を含む): 349227648

約数和(自身を除く): 140662082

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 220471, 440942, 2425181, 4850362, 9480253, 18960506, 104282783, 208565566]

約数ペア:

[(1, 208565566), (2, 104282783), (11, 18960506), (22, 9480253), (43, 4850362), (86, 2425181), (473, 440942), (946, 220471)]