20019027

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 12421293

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 383, 393, 399, 917, 1149, 2489, 2681, 2751, 7277, 7467, 8043, 17423, 21831, 50173, 50939, 52269, 150519, 152817, 351211, 953287, 1053633, 2859861, 6673009, 20019027]

約数ペア:

[(1, 20019027), (3, 6673009), (7, 2859861), (19, 1053633), (21, 953287), (57, 351211), (131, 152817), (133, 150519), (383, 52269), (393, 50939), (399, 50173), (917, 21831), (1149, 17423), (2489, 8043), (2681, 7467), (2751, 7277)]