20565184521

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{61471}}^1$

素因数の和:61749

約数の個数: 32

約数和(自身を含む): 31867084800

約数和(自身を除く): 11301900279

約数列:

[1, 3, 7, 21, 89, 179, 267, 537, 623, 1253, 1869, 3759, 15931, 47793, 61471, 111517, 184413, 334551, 430297, 1290891, 5470919, 11003309, 16412757, 33009927, 38296433, 77023163, 114889299, 231069489, 979294501, 2937883503, 6855061507, 20565184521]

約数ペア:

[(1, 20565184521), (3, 6855061507), (7, 2937883503), (21, 979294501), (89, 231069489), (179, 114889299), (267, 77023163), (537, 38296433), (623, 33009927), (1253, 16412757), (1869, 11003309), (3759, 5470919), (15931, 1290891), (47793, 430297), (61471, 334551), (111517, 184413)]