21170884

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5519}}^1$

素因数の和:5667

約数の個数: 24

約数和(自身を含む): 42658560

約数和(自身を除く): 21487676

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5519, 11038, 22076, 38633, 77266, 154532, 756103, 1512206, 3024412, 5292721, 10585442, 21170884]

約数ペア:

[(1, 21170884), (2, 10585442), (4, 5292721), (7, 3024412), (14, 1512206), (28, 756103), (137, 154532), (274, 77266), (548, 38633), (959, 22076), (1918, 11038), (3836, 5519)]