18259969

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 5932031

約数列:

[1, 7, 13, 19, 59, 91, 133, 179, 247, 413, 767, 1121, 1253, 1729, 2327, 3401, 5369, 7847, 10561, 14573, 16289, 23807, 44213, 73927, 102011, 137293, 200659, 309491, 961051, 1404613, 2608567, 18259969]

約数ペア:

[(1, 18259969), (7, 2608567), (13, 1404613), (19, 961051), (59, 309491), (91, 200659), (133, 137293), (179, 102011), (247, 73927), (413, 44213), (767, 23807), (1121, 16289), (1253, 14573), (1729, 10561), (2327, 7847), (3401, 5369)]