16389387

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1657}}^1$

素因数の和:1827

約数の個数: 24

約数和(自身を含む): 27244256

約数和(自身を除く): 10854869

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 1657, 3297, 4971, 9891, 11599, 14913, 34797, 104391, 260149, 780447, 1821043, 2341341, 5463129, 16389387]

約数ペア:

[(1, 16389387), (3, 5463129), (7, 2341341), (9, 1821043), (21, 780447), (63, 260149), (157, 104391), (471, 34797), (1099, 14913), (1413, 11599), (1657, 9891), (3297, 4971)]