28139661

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 46904832

約数和(自身を除く): 18765171

約数列:

[1, 3, 9, 11, 31, 33, 53, 93, 99, 159, 173, 279, 341, 477, 519, 583, 1023, 1557, 1643, 1749, 1903, 3069, 4929, 5247, 5363, 5709, 9169, 14787, 16089, 17127, 18073, 27507, 48267, 54219, 58993, 82521, 100859, 162657, 176979, 284239, 302577, 530937, 852717, 907731, 2558151, 3126629, 9379887, 28139661]

約数ペア:

[(1, 28139661), (3, 9379887), (9, 3126629), (11, 2558151), (31, 907731), (33, 852717), (53, 530937), (93, 302577), (99, 284239), (159, 176979), (173, 162657), (279, 100859), (341, 82521), (477, 58993), (519, 54219), (583, 48267), (1023, 27507), (1557, 18073), (1643, 17127), (1749, 16089), (1903, 14787), (3069, 9169), (4929, 5709), (5247, 5363)]