18980073

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4127}}^1$

素因数の和:4213

約数の個数: 24

約数和(自身を含む): 31769088

約数和(自身を除く): 12789015

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4127, 4599, 12381, 28889, 37143, 86667, 260001, 301271, 903813, 2108897, 2711439, 6326691, 18980073]

約数ペア:

[(1, 18980073), (3, 6326691), (7, 2711439), (9, 2108897), (21, 903813), (63, 301271), (73, 260001), (219, 86667), (511, 37143), (657, 28889), (1533, 12381), (4127, 4599)]