18332321

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 32

約数和(自身を含む): 23520000

約数和(自身を除く): 5187679

約数列:

[1, 7, 19, 29, 49, 97, 133, 203, 343, 551, 679, 931, 1421, 1843, 2813, 3857, 4753, 6517, 9947, 12901, 19691, 26999, 33271, 53447, 90307, 137837, 188993, 374129, 632149, 964859, 2618903, 18332321]

約数ペア:

[(1, 18332321), (7, 2618903), (19, 964859), (29, 632149), (49, 374129), (97, 188993), (133, 137837), (203, 90307), (343, 53447), (551, 33271), (679, 26999), (931, 19691), (1421, 12901), (1843, 9947), (2813, 6517), (3857, 4753)]