12220047

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4127}}^1$

素因数の和:4187

約数の個数: 24

約数和(自身を含む): 20606976

約数和(自身を除く): 8386929

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 4127, 12381, 28889, 37143, 86667, 193969, 260001, 581907, 1357783, 1745721, 4073349, 12220047]

約数ペア:

[(1, 12220047), (3, 4073349), (7, 1745721), (9, 1357783), (21, 581907), (47, 260001), (63, 193969), (141, 86667), (329, 37143), (423, 28889), (987, 12381), (2961, 4127)]