20193831

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1579}}^1$

素因数の和:1628

約数の個数: 36

約数和(自身を含む): 35123400

約数和(自身を除く): 14929569

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1579, 1827, 4263, 4737, 11053, 12789, 14211, 33159, 45791, 77371, 99477, 137373, 232113, 320537, 412119, 696339, 961611, 2243759, 2884833, 6731277, 20193831]

約数ペア:

[(1, 20193831), (3, 6731277), (7, 2884833), (9, 2243759), (21, 961611), (29, 696339), (49, 412119), (63, 320537), (87, 232113), (147, 137373), (203, 99477), (261, 77371), (441, 45791), (609, 33159), (1421, 14211), (1579, 12789), (1827, 11053), (4263, 4737)]