21914109

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2539}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 36454080

約数和(自身を除く): 14539971

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2539, 2877, 7617, 8631, 17773, 22851, 53319, 159957, 347843, 1043529, 2434901, 3130587, 7304703, 21914109]

約数ペア:

[(1, 21914109), (3, 7304703), (7, 3130587), (9, 2434901), (21, 1043529), (63, 347843), (137, 159957), (411, 53319), (959, 22851), (1233, 17773), (2539, 8631), (2877, 7617)]