19983733

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2381}}^1$

素因数の和:2508

約数の個数: 16

約数和(自身を含む): 25153920

約数和(自身を除く): 5170187

約数列:

[1, 7, 11, 77, 109, 763, 1199, 2381, 8393, 16667, 26191, 183337, 259529, 1816703, 2854819, 19983733]

約数ペア:

[(1, 19983733), (7, 2854819), (11, 1816703), (77, 259529), (109, 183337), (763, 26191), (1199, 16667), (2381, 8393)]