18916485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{701}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 34774272

約数和(自身を除く): 15857787

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 257, 701, 771, 1285, 1799, 2103, 3505, 3855, 4907, 5397, 8995, 10515, 14721, 24535, 26985, 73605, 180157, 540471, 900785, 1261099, 2702355, 3783297, 6305495, 18916485]

約数ペア:

[(1, 18916485), (3, 6305495), (5, 3783297), (7, 2702355), (15, 1261099), (21, 900785), (35, 540471), (105, 180157), (257, 73605), (701, 26985), (771, 24535), (1285, 14721), (1799, 10515), (2103, 8995), (3505, 5397), (3855, 4907)]