20189589

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11743851

約数列:

[1, 3, 7, 21, 41, 123, 131, 179, 287, 393, 537, 861, 917, 1253, 2751, 3759, 5371, 7339, 16113, 22017, 23449, 37597, 51373, 70347, 112791, 154119, 164143, 492429, 961409, 2884227, 6729863, 20189589]

約数ペア:

[(1, 20189589), (3, 6729863), (7, 2884227), (21, 961409), (41, 492429), (123, 164143), (131, 154119), (179, 112791), (287, 70347), (393, 51373), (537, 37597), (861, 23449), (917, 22017), (1253, 16113), (2751, 7339), (3759, 5371)]