2021105891

素因数分解:

$7^3\times {\mathrm{47}}^1\times {\mathrm{125371}}^1$

素因数の和:125439

約数の個数: 16

約数和(自身を含む): 2407142400

約数和(自身を除く): 386036509

約数列:

[1, 7, 47, 49, 329, 343, 2303, 16121, 125371, 877597, 5892437, 6143179, 41247059, 43002253, 288729413, 2021105891]

約数ペア:

[(1, 2021105891), (7, 288729413), (47, 43002253), (49, 41247059), (329, 6143179), (343, 5892437), (2303, 877597), (16121, 125371)]