17906949

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 29577600

約数和(自身を除く): 11670651

約数列:

[1, 3, 9, 19, 23, 29, 57, 69, 87, 157, 171, 207, 261, 437, 471, 551, 667, 1311, 1413, 1653, 2001, 2983, 3611, 3933, 4553, 4959, 6003, 8949, 10833, 12673, 13659, 26847, 32499, 38019, 40977, 68609, 86507, 104719, 114057, 205827, 259521, 314157, 617481, 778563, 942471, 1989661, 5968983, 17906949]

約数ペア:

[(1, 17906949), (3, 5968983), (9, 1989661), (19, 942471), (23, 778563), (29, 617481), (57, 314157), (69, 259521), (87, 205827), (157, 114057), (171, 104719), (207, 86507), (261, 68609), (437, 40977), (471, 38019), (551, 32499), (667, 26847), (1311, 13659), (1413, 12673), (1653, 10833), (2001, 8949), (2983, 6003), (3611, 4959), (3933, 4553)]