21429309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{1291}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 9826755

約数列:

[1, 3, 11, 33, 503, 1291, 1509, 3873, 5533, 14201, 16599, 42603, 649373, 1948119, 7143103, 21429309]

約数ペア:

[(1, 21429309), (3, 7143103), (11, 1948119), (33, 649373), (503, 42603), (1291, 16599), (1509, 14201), (3873, 5533)]