18413759

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 23346288

約数和(自身を除く): 4932529

約数列:

[1, 7, 13, 49, 91, 137, 211, 637, 959, 1477, 1781, 2743, 6713, 10339, 12467, 19201, 28907, 87269, 134407, 202349, 375791, 1416443, 2630537, 18413759]

約数ペア:

[(1, 18413759), (7, 2630537), (13, 1416443), (49, 375791), (91, 202349), (137, 134407), (211, 87269), (637, 28907), (959, 19201), (1477, 12467), (1781, 10339), (2743, 6713)]