28008717

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 16934643

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 121, 131, 209, 341, 363, 393, 589, 627, 1023, 1441, 1767, 2299, 2489, 3751, 4061, 4323, 6479, 6897, 7467, 11253, 12183, 15851, 19437, 27379, 44671, 47553, 71269, 77159, 82137, 134013, 213807, 231477, 301169, 491381, 848749, 903507, 1474143, 2546247, 9336239, 28008717]

約数ペア:

[(1, 28008717), (3, 9336239), (11, 2546247), (19, 1474143), (31, 903507), (33, 848749), (57, 491381), (93, 301169), (121, 231477), (131, 213807), (209, 134013), (341, 82137), (363, 77159), (393, 71269), (589, 47553), (627, 44671), (1023, 27379), (1441, 19437), (1767, 15851), (2299, 12183), (2489, 11253), (3751, 7467), (4061, 6897), (4323, 6479)]