18647433

素因数分解:

$3^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{853}}^1$

素因数の和:1213

約数の個数: 24

約数和(自身を含む): 30907968

約数和(自身を除く): 12260535

約数列:

[1, 3, 7, 9, 21, 63, 347, 853, 1041, 2429, 2559, 3123, 5971, 7287, 7677, 17913, 21861, 53739, 295991, 887973, 2071937, 2663919, 6215811, 18647433]

約数ペア:

[(1, 18647433), (3, 6215811), (7, 2663919), (9, 2071937), (21, 887973), (63, 295991), (347, 53739), (853, 21861), (1041, 17913), (2429, 7677), (2559, 7287), (3123, 5971)]