20686059

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2551}}^1$

素因数の和:2627

約数の個数: 24

約数和(自身を含む): 32247072

約数和(自身を除く): 11561013

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2551, 2703, 7653, 8109, 22959, 43367, 130101, 135203, 390303, 405609, 1216827, 2298451, 6895353, 20686059]

約数ペア:

[(1, 20686059), (3, 6895353), (9, 2298451), (17, 1216827), (51, 405609), (53, 390303), (153, 135203), (159, 130101), (477, 43367), (901, 22959), (2551, 8109), (2703, 7653)]