20515902

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7229}}^1$

素因数の和:7288

約数の個数: 32

約数和(自身を含む): 45809280

約数和(自身を除く): 25293378

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 7229, 14458, 21687, 43374, 79519, 159038, 238557, 310847, 477114, 621694, 932541, 1865082, 3419317, 6838634, 10257951, 20515902]

約数ペア:

[(1, 20515902), (2, 10257951), (3, 6838634), (6, 3419317), (11, 1865082), (22, 932541), (33, 621694), (43, 477114), (66, 310847), (86, 238557), (129, 159038), (258, 79519), (473, 43374), (946, 21687), (1419, 14458), (2838, 7229)]