18677659

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 25675776

約数和(自身を除く): 6998117

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 397, 517, 611, 1001, 2779, 3619, 4277, 4367, 5161, 6721, 18659, 30569, 36127, 47047, 56771, 130613, 205249, 242567, 397397, 1436743, 1697969, 2668237, 18677659]

約数ペア:

[(1, 18677659), (7, 2668237), (11, 1697969), (13, 1436743), (47, 397397), (77, 242567), (91, 205249), (143, 130613), (329, 56771), (397, 47047), (517, 36127), (611, 30569), (1001, 18659), (2779, 6721), (3619, 5161), (4277, 4367)]