19985814

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{38287}}^1$

素因数の和:38324

約数の個数: 24

約数和(自身を含む): 44796960

約数和(自身を除く): 24811146

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 38287, 76574, 114861, 229722, 344583, 689166, 1110323, 2220646, 3330969, 6661938, 9992907, 19985814]

約数ペア:

[(1, 19985814), (2, 9992907), (3, 6661938), (6, 3330969), (9, 2220646), (18, 1110323), (29, 689166), (58, 344583), (87, 229722), (174, 114861), (261, 76574), (522, 38287)]