20565656181

素因数分解:

$3^2\times 7^2\times {\mathrm{571}}^1\times {\mathrm{81671}}^1$

素因数の和:82262

約数の個数: 36

約数和(自身を含む): 34616840544

約数和(自身を除く): 14051184363

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 571, 1713, 3997, 5139, 11991, 27979, 35973, 81671, 83937, 245013, 251811, 571697, 735039, 1715091, 4001879, 5145273, 12005637, 36016911, 46634141, 139902423, 326438987, 419707269, 979316961, 2285072909, 2937950883, 6855218727, 20565656181]

約数ペア:

[(1, 20565656181), (3, 6855218727), (7, 2937950883), (9, 2285072909), (21, 979316961), (49, 419707269), (63, 326438987), (147, 139902423), (441, 46634141), (571, 36016911), (1713, 12005637), (3997, 5145273), (5139, 4001879), (11991, 1715091), (27979, 735039), (35973, 571697), (81671, 251811), (83937, 245013)]