12639969

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{5381}}^1$

素因数の和:5422

約数の個数: 20

約数和(自身を含む): 19536660

約数和(自身を除く): 6896691

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 5381, 16143, 48429, 145287, 156049, 435861, 468147, 1404441, 4213323, 12639969]

約数ペア:

[(1, 12639969), (3, 4213323), (9, 1404441), (27, 468147), (29, 435861), (81, 156049), (87, 145287), (261, 48429), (783, 16143), (2349, 5381)]