19811501703

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1490371}}^1$

素因数の和:1490595

約数の個数: 24

約数和(自身を含む): 32859721856

約数和(自身を除く): 13048220153

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1477, 1899, 4431, 13293, 1490371, 4471113, 10432597, 13413339, 31297791, 93893373, 314468281, 943404843, 2201277967, 2830214529, 6603833901, 19811501703]

約数ペア:

[(1, 19811501703), (3, 6603833901), (7, 2830214529), (9, 2201277967), (21, 943404843), (63, 314468281), (211, 93893373), (633, 31297791), (1477, 13413339), (1899, 10432597), (4431, 4471113), (13293, 1490371)]