19713393

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 35143680

約数和(自身を除く): 15430287

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 383, 387, 399, 817, 903, 1149, 1197, 2451, 2681, 2709, 3447, 5719, 7277, 7353, 8043, 16469, 17157, 21831, 24129, 49407, 50939, 51471, 65493, 115283, 148221, 152817, 312911, 345849, 458451, 938733, 1037547, 2190377, 2816199, 6571131, 19713393]

約数ペア:

[(1, 19713393), (3, 6571131), (7, 2816199), (9, 2190377), (19, 1037547), (21, 938733), (43, 458451), (57, 345849), (63, 312911), (129, 152817), (133, 148221), (171, 115283), (301, 65493), (383, 51471), (387, 50939), (399, 49407), (817, 24129), (903, 21831), (1149, 17157), (1197, 16469), (2451, 8043), (2681, 7353), (2709, 7277), (3447, 5719)]