20995533

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 32920160

約数和(自身を除く): 11924627

約数列:

[1, 3, 9, 13, 39, 117, 139, 417, 1251, 1291, 1807, 3873, 5421, 11619, 16263, 16783, 50349, 151047, 179449, 538347, 1615041, 2332837, 6998511, 20995533]

約数ペア:

[(1, 20995533), (3, 6998511), (9, 2332837), (13, 1615041), (39, 538347), (117, 179449), (139, 151047), (417, 50349), (1251, 16783), (1291, 16263), (1807, 11619), (3873, 5421)]