28383777

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18443}}^1$

素因数の和:18474

約数の個数: 20

約数和(自身を含む): 44634480

約数和(自身を除く): 16250703

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18443, 55329, 165987, 350417, 497961, 1051251, 1493883, 3153753, 9461259, 28383777]

約数ペア:

[(1, 28383777), (3, 9461259), (9, 3153753), (19, 1493883), (27, 1051251), (57, 497961), (81, 350417), (171, 165987), (513, 55329), (1539, 18443)]