28904733

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 50459136

約数和(自身を除く): 21554403

約数列:

[1, 3, 9, 11, 13, 33, 37, 39, 99, 111, 117, 143, 333, 407, 429, 481, 607, 1221, 1287, 1443, 1821, 3663, 4329, 5291, 5463, 6677, 7891, 15873, 20031, 22459, 23673, 47619, 60093, 67377, 71019, 86801, 202131, 247049, 260403, 291967, 741147, 781209, 875901, 2223441, 2627703, 3211637, 9634911, 28904733]

約数ペア:

[(1, 28904733), (3, 9634911), (9, 3211637), (11, 2627703), (13, 2223441), (33, 875901), (37, 781209), (39, 741147), (99, 291967), (111, 260403), (117, 247049), (143, 202131), (333, 86801), (407, 71019), (429, 67377), (481, 60093), (607, 47619), (1221, 23673), (1287, 22459), (1443, 20031), (1821, 15873), (3663, 7891), (4329, 6677), (5291, 5463)]