20880111

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24251}}^1$

素因数の和:24302

約数の個数: 16

約数和(自身を含む): 32594688

約数和(自身を除く): 11714577

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24251, 72753, 169757, 509271, 994291, 2982873, 6960037, 20880111]

約数ペア:

[(1, 20880111), (3, 6960037), (7, 2982873), (21, 994291), (41, 509271), (123, 169757), (287, 72753), (861, 24251)]