20498886

素因数分解:

$2^1\times 3^3\times {\mathrm{139}}^1\times {\mathrm{2731}}^1$

素因数の和:2881

約数の個数: 32

約数和(自身を含む): 45897600

約数和(自身を除く): 25398714

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 139, 278, 417, 834, 1251, 2502, 2731, 3753, 5462, 7506, 8193, 16386, 24579, 49158, 73737, 147474, 379609, 759218, 1138827, 2277654, 3416481, 6832962, 10249443, 20498886]

約数ペア:

[(1, 20498886), (2, 10249443), (3, 6832962), (6, 3416481), (9, 2277654), (18, 1138827), (27, 759218), (54, 379609), (139, 147474), (278, 73737), (417, 49158), (834, 24579), (1251, 16386), (2502, 8193), (2731, 7506), (3753, 5462)]