20401801

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{727}}^1$

素因数の和:964

約数の個数: 16

約数和(自身を含む): 24693760

約数和(自身を除く): 4291959

約数列:

[1, 7, 19, 133, 211, 727, 1477, 4009, 5089, 13813, 28063, 96691, 153397, 1073779, 2914543, 20401801]

約数ペア:

[(1, 20401801), (7, 2914543), (19, 1073779), (133, 153397), (211, 96691), (727, 28063), (1477, 13813), (4009, 5089)]