20841513

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12889}}^1$

素因数の和:12917

約数の個数: 24

約数和(自身を含む): 35267040

約数和(自身を除く): 14425527

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12889, 38667, 90223, 141779, 270669, 425337, 631561, 992453, 1894683, 2977359, 6947171, 20841513]

約数ペア:

[(1, 20841513), (3, 6947171), (7, 2977359), (11, 1894683), (21, 992453), (33, 631561), (49, 425337), (77, 270669), (147, 141779), (231, 90223), (539, 38667), (1617, 12889)]