21439444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5807}}^1$

素因数の和:5895

約数の個数: 24

約数和(自身を含む): 40981248

約数和(自身を除く): 19541804

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5807, 11614, 23228, 75491, 150982, 301964, 412297, 824594, 1649188, 5359861, 10719722, 21439444]

約数ペア:

[(1, 21439444), (2, 10719722), (4, 5359861), (13, 1649188), (26, 824594), (52, 412297), (71, 301964), (142, 150982), (284, 75491), (923, 23228), (1846, 11614), (3692, 5807)]