18797168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90371}}^1$

素因数の和:90392

約数の個数: 20

約数和(自身を含む): 39221448

約数和(自身を除く): 20424280

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90371, 180742, 361484, 722968, 1174823, 1445936, 2349646, 4699292, 9398584, 18797168]

約数ペア:

[(1, 18797168), (2, 9398584), (4, 4699292), (8, 2349646), (13, 1445936), (16, 1174823), (26, 722968), (52, 361484), (104, 180742), (208, 90371)]