18708921

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8999}}^1$

素因数の和:9026

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 15851079

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 8999, 26997, 62993, 80991, 98989, 188979, 242973, 296967, 566937, 692923, 890901, 1700811, 2078769, 2672703, 6236307, 18708921]

約数ペア:

[(1, 18708921), (3, 6236307), (7, 2672703), (9, 2078769), (11, 1700811), (21, 890901), (27, 692923), (33, 566937), (63, 296967), (77, 242973), (99, 188979), (189, 98989), (231, 80991), (297, 62993), (693, 26997), (2079, 8999)]