18645783

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25163}}^1$

素因数の和:25198

約数の個数: 16

約数和(自身を含む): 28183680

約数和(自身を除く): 9537897

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 25163, 75489, 327119, 478097, 981357, 1434291, 6215261, 18645783]

約数ペア:

[(1, 18645783), (3, 6215261), (13, 1434291), (19, 981357), (39, 478097), (57, 327119), (247, 75489), (741, 25163)]