20900133

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 12047067

約数列:

[1, 3, 9, 19, 27, 57, 131, 171, 311, 393, 513, 933, 1179, 2489, 2799, 3537, 5909, 7467, 8397, 17727, 22401, 40741, 53181, 67203, 122223, 159543, 366669, 774079, 1100007, 2322237, 6966711, 20900133]

約数ペア:

[(1, 20900133), (3, 6966711), (9, 2322237), (19, 1100007), (27, 774079), (57, 366669), (131, 159543), (171, 122223), (311, 67203), (393, 53181), (513, 40741), (933, 22401), (1179, 17727), (2489, 8397), (2799, 7467), (3537, 5909)]