1894347

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 3496416

約数和(自身を除く): 1602069

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 257, 273, 351, 567, 771, 819, 1053, 1799, 2313, 2457, 3341, 5397, 6939, 7371, 10023, 16191, 20817, 23387, 30069, 48573, 70161, 90207, 145719, 210483, 270621, 631449, 1894347]

約数ペア:

[(1, 1894347), (3, 631449), (7, 270621), (9, 210483), (13, 145719), (21, 90207), (27, 70161), (39, 48573), (63, 30069), (81, 23387), (91, 20817), (117, 16191), (189, 10023), (257, 7371), (273, 6939), (351, 5397), (567, 3341), (771, 2457), (819, 2313), (1053, 1799)]