28920003

素因数分解:

$3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{3137}}^1$

素因数の和:3586

約数の個数: 16

約数和(自身を含む): 44183040

約数和(自身を除く): 15263037

約数列:

[1, 3, 7, 21, 439, 1317, 3073, 3137, 9219, 9411, 21959, 65877, 1377143, 4131429, 9640001, 28920003]

約数ペア:

[(1, 28920003), (3, 9640001), (7, 4131429), (21, 1377143), (439, 65877), (1317, 21959), (3073, 9411), (3137, 9219)]