20630571

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 33362784

約数和(自身を除く): 12732213

約数列:

[1, 3, 13, 17, 29, 37, 39, 51, 87, 111, 221, 377, 481, 493, 629, 663, 841, 1073, 1131, 1443, 1479, 1887, 2523, 3219, 6409, 8177, 10933, 13949, 14297, 18241, 19227, 24531, 31117, 32799, 41847, 42891, 54723, 93351, 185861, 237133, 404521, 528989, 557583, 711399, 1213563, 1586967, 6876857, 20630571]

約数ペア:

[(1, 20630571), (3, 6876857), (13, 1586967), (17, 1213563), (29, 711399), (37, 557583), (39, 528989), (51, 404521), (87, 237133), (111, 185861), (221, 93351), (377, 54723), (481, 42891), (493, 41847), (629, 32799), (663, 31117), (841, 24531), (1073, 19227), (1131, 18241), (1443, 14297), (1479, 13949), (1887, 10933), (2523, 8177), (3219, 6409)]