18775809

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{419}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 29352960

約数和(自身を除く): 10577151

約数列:

[1, 3, 9, 13, 39, 117, 383, 419, 1149, 1257, 3447, 3771, 4979, 5447, 14937, 16341, 44811, 49023, 160477, 481431, 1444293, 2086201, 6258603, 18775809]

約数ペア:

[(1, 18775809), (3, 6258603), (9, 2086201), (13, 1444293), (39, 481431), (117, 160477), (383, 49023), (419, 44811), (1149, 16341), (1257, 14937), (3447, 5447), (3771, 4979)]