178168221

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2063

約数の個数: 64

約数和(自身を含む): 336906240

約数和(自身を除く): 158738019

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 63, 77, 99, 129, 189, 231, 297, 301, 387, 473, 693, 903, 1161, 1419, 1993, 2079, 2709, 3311, 4257, 5979, 8127, 9933, 12771, 13951, 17937, 21923, 29799, 41853, 53811, 65769, 85699, 89397, 125559, 153461, 197307, 257097, 376677, 460383, 591921, 599893, 771291, 942689, 1381149, 1799679, 2313873, 2828067, 4143447, 5399037, 6598823, 8484201, 16197111, 19796469, 25452603, 59389407, 178168221]

約数ペア:

[(1, 178168221), (3, 59389407), (7, 25452603), (9, 19796469), (11, 16197111), (21, 8484201), (27, 6598823), (33, 5399037), (43, 4143447), (63, 2828067), (77, 2313873), (99, 1799679), (129, 1381149), (189, 942689), (231, 771291), (297, 599893), (301, 591921), (387, 460383), (473, 376677), (693, 257097), (903, 197307), (1161, 153461), (1419, 125559), (1993, 89397), (2079, 85699), (2709, 65769), (3311, 53811), (4257, 41853), (5979, 29799), (8127, 21923), (9933, 17937), (12771, 13951)]