19810359

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 30551040

約数和(自身を除く): 10740681

約数列:

[1, 3, 9, 27, 47, 67, 141, 201, 233, 423, 603, 699, 1269, 1809, 2097, 3149, 6291, 9447, 10951, 15611, 28341, 32853, 46833, 85023, 98559, 140499, 295677, 421497, 733717, 2201151, 6603453, 19810359]

約数ペア:

[(1, 19810359), (3, 6603453), (9, 2201151), (27, 733717), (47, 421497), (67, 295677), (141, 140499), (201, 98559), (233, 85023), (423, 46833), (603, 32853), (699, 28341), (1269, 15611), (1809, 10951), (2097, 9447), (3149, 6291)]