19383777

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{983}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 32133504

約数和(自身を除く): 12749727

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 983, 2191, 2817, 2949, 6573, 6881, 8847, 19719, 20643, 61929, 307679, 923037, 2153753, 2769111, 6461259, 19383777]

約数ペア:

[(1, 19383777), (3, 6461259), (7, 2769111), (9, 2153753), (21, 923037), (63, 307679), (313, 61929), (939, 20643), (983, 19719), (2191, 8847), (2817, 6881), (2949, 6573)]