16940421

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5154

約数の個数: 20

約数和(自身を含む): 25928364

約数和(自身を除く): 8987943

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 5101, 15303, 45909, 137727, 209141, 413181, 627423, 1882269, 5646807, 16940421]

約数ペア:

[(1, 16940421), (3, 5646807), (9, 1882269), (27, 627423), (41, 413181), (81, 209141), (123, 137727), (369, 45909), (1107, 15303), (3321, 5101)]