28165473

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 49036416

約数和(自身を除く): 20870943

約数列:

[1, 3, 7, 9, 21, 37, 43, 63, 111, 129, 259, 281, 301, 333, 387, 777, 843, 903, 1591, 1967, 2331, 2529, 2709, 4773, 5901, 10397, 11137, 12083, 14319, 17703, 31191, 33411, 36249, 72779, 84581, 93573, 100233, 108747, 218337, 253743, 447071, 655011, 761229, 1341213, 3129497, 4023639, 9388491, 28165473]

約数ペア:

[(1, 28165473), (3, 9388491), (7, 4023639), (9, 3129497), (21, 1341213), (37, 761229), (43, 655011), (63, 447071), (111, 253743), (129, 218337), (259, 108747), (281, 100233), (301, 93573), (333, 84581), (387, 72779), (777, 36249), (843, 33411), (903, 31191), (1591, 17703), (1967, 14319), (2331, 12083), (2529, 11137), (2709, 10397), (4773, 5901)]