21570776

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{743}}^1$

素因数の和:959

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 21283624

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 191, 382, 743, 764, 1486, 1528, 2972, 3629, 5944, 7258, 14117, 14516, 28234, 29032, 56468, 112936, 141913, 283826, 567652, 1135304, 2696347, 5392694, 10785388, 21570776]

約数ペア:

[(1, 21570776), (2, 10785388), (4, 5392694), (8, 2696347), (19, 1135304), (38, 567652), (76, 283826), (152, 141913), (191, 112936), (382, 56468), (743, 29032), (764, 28234), (1486, 14516), (1528, 14117), (2972, 7258), (3629, 5944)]