19280421

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{823}}^1$

素因数の和:985

約数の個数: 24

約数和(自身を含む): 29565120

約数和(自身を除く): 10284699

約数列:

[1, 3, 9, 19, 57, 137, 171, 411, 823, 1233, 2469, 2603, 7407, 7809, 15637, 23427, 46911, 112751, 140733, 338253, 1014759, 2142269, 6426807, 19280421]

約数ペア:

[(1, 19280421), (3, 6426807), (9, 2142269), (19, 1014759), (57, 338253), (137, 140733), (171, 112751), (411, 46911), (823, 23427), (1233, 15637), (2469, 7809), (2603, 7407)]