20666337

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 28365120

約数和(自身を除く): 7698783

約数列:

[1, 3, 41, 123, 401, 419, 1203, 1257, 16441, 17179, 49323, 51537, 168019, 504057, 6888779, 20666337]

約数ペア:

[(1, 20666337), (3, 6888779), (41, 504057), (123, 168019), (401, 51537), (419, 49323), (1203, 17179), (1257, 16441)]