12721849

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2333}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 15684480

約数和(自身を除く): 2962631

約数列:

[1, 7, 19, 41, 133, 287, 779, 2333, 5453, 16331, 44327, 95653, 310289, 669571, 1817407, 12721849]

約数ペア:

[(1, 12721849), (7, 1817407), (19, 669571), (41, 310289), (133, 95653), (287, 44327), (779, 16331), (2333, 5453)]