20217963339

素因数分解:

$3^3\times 7^1\times {\mathrm{5273}}^1\times {\mathrm{20287}}^1$

素因数の和:25576

約数の個数: 32

約数和(自身を含む): 34239651840

約数和(自身を除く): 14021688501

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 5273, 15819, 20287, 36911, 47457, 60861, 110733, 142009, 142371, 182583, 332199, 426027, 547749, 996597, 1278081, 3834243, 106973351, 320920053, 748813457, 962760159, 2246440371, 2888280477, 6739321113, 20217963339]

約数ペア:

[(1, 20217963339), (3, 6739321113), (7, 2888280477), (9, 2246440371), (21, 962760159), (27, 748813457), (63, 320920053), (189, 106973351), (5273, 3834243), (15819, 1278081), (20287, 996597), (36911, 547749), (47457, 426027), (60861, 332199), (110733, 182583), (142009, 142371)]