20860947

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 31393440

約数和(自身を除く): 10532493

約数列:

[1, 3, 9, 29, 87, 257, 261, 311, 771, 933, 2313, 2799, 7453, 9019, 22359, 27057, 67077, 79927, 81171, 239781, 719343, 2317883, 6953649, 20860947]

約数ペア:

[(1, 20860947), (3, 6953649), (9, 2317883), (29, 719343), (87, 239781), (257, 81171), (261, 79927), (311, 67077), (771, 27057), (933, 22359), (2313, 9019), (2799, 7453)]