20984733

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 38278656

約数和(自身を除く): 17293923

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 107, 231, 283, 321, 693, 749, 849, 963, 1177, 1981, 2247, 2547, 3113, 3531, 5943, 6741, 8239, 9339, 10593, 17829, 21791, 24717, 28017, 30281, 65373, 74151, 90843, 196119, 211967, 272529, 333091, 635901, 999273, 1907703, 2331637, 2997819, 6994911, 20984733]

約数ペア:

[(1, 20984733), (3, 6994911), (7, 2997819), (9, 2331637), (11, 1907703), (21, 999273), (33, 635901), (63, 333091), (77, 272529), (99, 211967), (107, 196119), (231, 90843), (283, 74151), (321, 65373), (693, 30281), (749, 28017), (849, 24717), (963, 21791), (1177, 17829), (1981, 10593), (2247, 9339), (2547, 8239), (3113, 6741), (3531, 5943)]