18841955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 26155008

約数和(自身を除く): 7313053

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 257, 341, 473, 1285, 1333, 1705, 2365, 2827, 6665, 7967, 11051, 14135, 14663, 39835, 55255, 73315, 87637, 121561, 342581, 438185, 607805, 1712905, 3768391, 18841955]

約数ペア:

[(1, 18841955), (5, 3768391), (11, 1712905), (31, 607805), (43, 438185), (55, 342581), (155, 121561), (215, 87637), (257, 73315), (341, 55255), (473, 39835), (1285, 14663), (1333, 14135), (1705, 11051), (2365, 7967), (2827, 6665)]