20801067

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1475

約数の個数: 32

約数和(自身を含む): 34291200

約数和(自身を除く): 13490133

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 1409, 2109, 4227, 4921, 9863, 14763, 26771, 29589, 52133, 80313, 156399, 187397, 364931, 562191, 990527, 1094793, 2971581, 6933689, 20801067]

約数ペア:

[(1, 20801067), (3, 6933689), (7, 2971581), (19, 1094793), (21, 990527), (37, 562191), (57, 364931), (111, 187397), (133, 156399), (259, 80313), (399, 52133), (703, 29589), (777, 26771), (1409, 14763), (2109, 9863), (4227, 4921)]