13256968781

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{254927}}^1$

素因数の和:254993

約数の個数: 32

約数和(自身を含む): 17620623360

約数和(自身を除く): 4363654579

約数列:

[1, 7, 17, 19, 23, 119, 133, 161, 323, 391, 437, 2261, 2737, 3059, 7429, 52003, 254927, 1784489, 4333759, 4843613, 5863321, 30336313, 33905291, 41043247, 82341421, 99676457, 111403099, 576389947, 697735199, 779821693, 1893852683, 13256968781]

約数ペア:

[(1, 13256968781), (7, 1893852683), (17, 779821693), (19, 697735199), (23, 576389947), (119, 111403099), (133, 99676457), (161, 82341421), (323, 41043247), (391, 33905291), (437, 30336313), (2261, 5863321), (2737, 4843613), (3059, 4333759), (7429, 1784489), (52003, 254927)]