19281569181

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1\times {\mathrm{25303}}^1$

素因数の和:25721

約数の個数: 32

約数和(自身を含む): 29713778688

約数和(自身を除く): 10432209507

約数列:

[1, 3, 7, 21, 131, 277, 393, 831, 917, 1939, 2751, 5817, 25303, 36287, 75909, 108861, 177121, 254009, 531363, 762027, 3314693, 7008931, 9944079, 21026793, 23202851, 49062517, 69608553, 147187551, 918169961, 2754509883, 6427189727, 19281569181]

約数ペア:

[(1, 19281569181), (3, 6427189727), (7, 2754509883), (21, 918169961), (131, 147187551), (277, 69608553), (393, 49062517), (831, 23202851), (917, 21026793), (1939, 9944079), (2751, 7008931), (5817, 3314693), (25303, 762027), (36287, 531363), (75909, 254009), (108861, 177121)]