20857863668

素因数分解:

$2^2\times {\mathrm{307}}^1\times {\mathrm{1801}}^1\times {\mathrm{9431}}^1$

素因数の和:11543

約数の個数: 24

約数和(自身を含む): 36644376384

約数和(自身を除く): 15786512716

約数列:

[1, 2, 4, 307, 614, 1228, 1801, 3602, 7204, 9431, 18862, 37724, 552907, 1105814, 2211628, 2895317, 5790634, 11581268, 16985231, 33970462, 67940924, 5214465917, 10428931834, 20857863668]

約数ペア:

[(1, 20857863668), (2, 10428931834), (4, 5214465917), (307, 67940924), (614, 33970462), (1228, 16985231), (1801, 11581268), (3602, 5790634), (7204, 2895317), (9431, 2211628), (18862, 1105814), (37724, 552907)]