18259735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 6577385

約数列:

[1, 5, 13, 43, 47, 65, 139, 215, 235, 559, 611, 695, 1807, 2021, 2795, 3055, 5977, 6533, 9035, 10105, 26273, 29885, 32665, 77701, 84929, 131365, 280919, 388505, 424645, 1404595, 3651947, 18259735]

約数ペア:

[(1, 18259735), (5, 3651947), (13, 1404595), (43, 424645), (47, 388505), (65, 280919), (139, 131365), (215, 84929), (235, 77701), (559, 32665), (611, 29885), (695, 26273), (1807, 10105), (2021, 9035), (2795, 6533), (3055, 5977)]