20293119

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 38522880

約数和(自身を除く): 18229761

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 63, 77, 99, 129, 189, 227, 231, 297, 301, 387, 473, 681, 693, 903, 1161, 1419, 1589, 2043, 2079, 2497, 2709, 3311, 4257, 4767, 6129, 7491, 8127, 9761, 9933, 12771, 14301, 17479, 22473, 29283, 29799, 42903, 52437, 67419, 68327, 87849, 89397, 107371, 157311, 204981, 263547, 322113, 471933, 614943, 751597, 966339, 1844829, 2254791, 2899017, 6764373, 20293119]

約数ペア:

[(1, 20293119), (3, 6764373), (7, 2899017), (9, 2254791), (11, 1844829), (21, 966339), (27, 751597), (33, 614943), (43, 471933), (63, 322113), (77, 263547), (99, 204981), (129, 157311), (189, 107371), (227, 89397), (231, 87849), (297, 68327), (301, 67419), (387, 52437), (473, 42903), (681, 29799), (693, 29283), (903, 22473), (1161, 17479), (1419, 14301), (1589, 12771), (2043, 9933), (2079, 9761), (2497, 8127), (2709, 7491), (3311, 6129), (4257, 4767)]