20781185067

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{104561}}^1$

素因数の和:105020

約数の個数: 32

約数和(自身を含む): 32673533760

約数和(自身を除く): 11892348693

約数列:

[1, 3, 9, 17, 27, 51, 153, 433, 459, 1299, 3897, 7361, 11691, 22083, 66249, 104561, 198747, 313683, 941049, 1777537, 2823147, 5332611, 15997833, 45274913, 47993499, 135824739, 407474217, 769673521, 1222422651, 2309020563, 6927061689, 20781185067]

約数ペア:

[(1, 20781185067), (3, 6927061689), (9, 2309020563), (17, 1222422651), (27, 769673521), (51, 407474217), (153, 135824739), (433, 47993499), (459, 45274913), (1299, 15997833), (3897, 5332611), (7361, 2823147), (11691, 1777537), (22083, 941049), (66249, 313683), (104561, 198747)]