20673989

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2593}}^1$

素因数の和:2684

約数の個数: 16

約数和(自身を含む): 25400448

約数和(自身を除く): 4726459

約数列:

[1, 7, 17, 67, 119, 469, 1139, 2593, 7973, 18151, 44081, 173731, 308567, 1216117, 2953427, 20673989]

約数ペア:

[(1, 20673989), (7, 2953427), (17, 1216117), (67, 308567), (119, 173731), (469, 44081), (1139, 18151), (2593, 7973)]