21875794563

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{17551}}^1$

素因数の和:17768

約数の個数: 48

約数和(自身を含む): 34736110080

約数和(自身を除く): 12860315517

約数列:

[1, 3, 7, 21, 49, 61, 139, 147, 183, 417, 427, 973, 1281, 2919, 2989, 6811, 8479, 8967, 17551, 20433, 25437, 52653, 59353, 122857, 178059, 368571, 415471, 859999, 1070611, 1246413, 2439589, 2579997, 3211833, 7318767, 7494277, 17077123, 22482831, 51231369, 52459939, 119539861, 148814929, 157379817, 358619583, 446444787, 1041704503, 3125113509, 7291931521, 21875794563]

約数ペア:

[(1, 21875794563), (3, 7291931521), (7, 3125113509), (21, 1041704503), (49, 446444787), (61, 358619583), (139, 157379817), (147, 148814929), (183, 119539861), (417, 52459939), (427, 51231369), (973, 22482831), (1281, 17077123), (2919, 7494277), (2989, 7318767), (6811, 3211833), (8479, 2579997), (8967, 2439589), (17551, 1246413), (20433, 1070611), (25437, 859999), (52653, 415471), (59353, 368571), (122857, 178059)]