28058877

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2174

約数の個数: 48

約数和(自身を含む): 53214720

約数和(自身を除く): 25155843

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1881, 2131, 4389, 6393, 13167, 14917, 19179, 23441, 40489, 44751, 70323, 121467, 134253, 164087, 210969, 283423, 364401, 445379, 492261, 850269, 1336137, 1476783, 2550807, 3117653, 4008411, 9352959, 28058877]

約数ペア:

[(1, 28058877), (3, 9352959), (7, 4008411), (9, 3117653), (11, 2550807), (19, 1476783), (21, 1336137), (33, 850269), (57, 492261), (63, 445379), (77, 364401), (99, 283423), (133, 210969), (171, 164087), (209, 134253), (231, 121467), (399, 70323), (627, 44751), (693, 40489), (1197, 23441), (1463, 19179), (1881, 14917), (2131, 13167), (4389, 6393)]