20180990007

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{293}}^1\times {\mathrm{4139}}^1$

素因数の和:4524

約数の個数: 36

約数和(自身を含む): 29953090440

約数和(自身を除く): 9772100433

約数列:

[1, 3, 9, 43, 129, 293, 387, 879, 1849, 2637, 4139, 5547, 12417, 12599, 16641, 37251, 37797, 113391, 177977, 533931, 541757, 1212727, 1601793, 1625271, 3638181, 4875813, 7653011, 10914543, 22959033, 52147261, 68877099, 156441783, 469325349, 2242332223, 6726996669, 20180990007]

約数ペア:

[(1, 20180990007), (3, 6726996669), (9, 2242332223), (43, 469325349), (129, 156441783), (293, 68877099), (387, 52147261), (879, 22959033), (1849, 10914543), (2637, 7653011), (4139, 4875813), (5547, 3638181), (12417, 1625271), (12599, 1601793), (16641, 1212727), (37251, 541757), (37797, 533931), (113391, 177977)]